Home / 102,505.60-141,457.89-56,564.17

Finding the Fourth Proportional to 102,505.60, 141,457.89 and 56,564.17

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Solution

The fourth proportional to 102,505.60, 141,457.89 and 56,564.17 is: 78,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,505.60 : 141,457.89 = 56,564.17 : x
  2. Step 2: Convert to fraction form
    102,505.60/141,457.89 = 56,564.17/x
  3. Step 3: Cross multiply
    102,505.60x = 141,457.89 × 56,564.17
  4. Step 4: Simplify right side
    102,505.60x = 8,001,448,791.97
  5. Step 5: Solve for x
    x = 8,001,448,791.97/102,505.60
  6. Step 6: Final answer
    x = 78,058.65

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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.