Home / 102,759.18-141,805.53-57,435.90

Finding the Fourth Proportional to 102,759.18, 141,805.53 and 57,435.90

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Solution

The fourth proportional to 102,759.18, 141,805.53 and 57,435.90 is: 79,260.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,759.18 : 141,805.53 = 57,435.90 : x
  2. Step 2: Convert to fraction form
    102,759.18/141,805.53 = 57,435.90/x
  3. Step 3: Cross multiply
    102,759.18x = 141,805.53 × 57,435.90
  4. Step 4: Simplify right side
    102,759.18x = 8,144,728,240.53
  5. Step 5: Solve for x
    x = 8,144,728,240.53/102,759.18
  6. Step 6: Final answer
    x = 79,260.35

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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.