Home / 102,805.81-141,865.43-57,487.52

Finding the Fourth Proportional to 102,805.81, 141,865.43 and 57,487.52

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Solution

The fourth proportional to 102,805.81, 141,865.43 and 57,487.52 is: 79,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,805.81 : 141,865.43 = 57,487.52 : x
  2. Step 2: Convert to fraction form
    102,805.81/141,865.43 = 57,487.52/x
  3. Step 3: Cross multiply
    102,805.81x = 141,865.43 × 57,487.52
  4. Step 4: Simplify right side
    102,805.81x = 8,155,491,811.66
  5. Step 5: Solve for x
    x = 8,155,491,811.66/102,805.81
  6. Step 6: Final answer
    x = 79,329.10

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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.