Home / 102,757.56-141,802.60-57,435.72

Finding the Fourth Proportional to 102,757.56, 141,802.60 and 57,435.72

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Solution

The fourth proportional to 102,757.56, 141,802.60 and 57,435.72 is: 79,259.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,757.56 : 141,802.60 = 57,435.72 : x
  2. Step 2: Convert to fraction form
    102,757.56/141,802.60 = 57,435.72/x
  3. Step 3: Cross multiply
    102,757.56x = 141,802.60 × 57,435.72
  4. Step 4: Simplify right side
    102,757.56x = 8,144,534,428.87
  5. Step 5: Solve for x
    x = 8,144,534,428.87/102,757.56
  6. Step 6: Final answer
    x = 79,259.71

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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.