Home / 103,118,108.96-142,300,151.64-56,708,362.73

Finding the Fourth Proportional to 103,118,108.96, 142,300,151.64 and 56,708,362.73

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Solution

The fourth proportional to 103,118,108.96, 142,300,151.64 and 56,708,362.73 is: 78,255,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,118,108.96 : 142,300,151.64 = 56,708,362.73 : x
  2. Step 2: Convert to fraction form
    103,118,108.96/142,300,151.64 = 56,708,362.73/x
  3. Step 3: Cross multiply
    103,118,108.96x = 142,300,151.64 × 56,708,362.73
  4. Step 4: Simplify right side
    103,118,108.96x = 8,069,608,615,023,623
  5. Step 5: Solve for x
    x = 8,069,608,615,023,623/103,118,108.96
  6. Step 6: Final answer
    x = 78,255,979.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.