Home / 104,188.48-143,778.80-56,440.64

Finding the Fourth Proportional to 104,188.48, 143,778.80 and 56,440.64

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Solution

The fourth proportional to 104,188.48, 143,778.80 and 56,440.64 is: 77,887.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,188.48 : 143,778.80 = 56,440.64 : x
  2. Step 2: Convert to fraction form
    104,188.48/143,778.80 = 56,440.64/x
  3. Step 3: Cross multiply
    104,188.48x = 143,778.80 × 56,440.64
  4. Step 4: Simplify right side
    104,188.48x = 8,114,967,490.43
  5. Step 5: Solve for x
    x = 8,114,967,490.43/104,188.48
  6. Step 6: Final answer
    x = 77,887.38

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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.