Home / 131,615.96-181,630.05-74,267.45

Finding the Fourth Proportional to 131,615.96, 181,630.05 and 74,267.45

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Solution

The fourth proportional to 131,615.96, 181,630.05 and 74,267.45 is: 102,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,615.96 : 181,630.05 = 74,267.45 : x
  2. Step 2: Convert to fraction form
    131,615.96/181,630.05 = 74,267.45/x
  3. Step 3: Cross multiply
    131,615.96x = 181,630.05 × 74,267.45
  4. Step 4: Simplify right side
    131,615.96x = 13,489,200,656.87
  5. Step 5: Solve for x
    x = 13,489,200,656.87/131,615.96
  6. Step 6: Final answer
    x = 102,489.10

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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.