Home / 103,255.76-142,487.88-58,535.12

Finding the Fourth Proportional to 103,255.76, 142,487.88 and 58,535.12

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Solution

The fourth proportional to 103,255.76, 142,487.88 and 58,535.12 is: 80,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255.76 : 142,487.88 = 58,535.12 : x
  2. Step 2: Convert to fraction form
    103,255.76/142,487.88 = 58,535.12/x
  3. Step 3: Cross multiply
    103,255.76x = 142,487.88 × 58,535.12
  4. Step 4: Simplify right side
    103,255.76x = 8,340,545,154.35
  5. Step 5: Solve for x
    x = 8,340,545,154.35/103,255.76
  6. Step 6: Final answer
    x = 80,775.59

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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.