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Finding the Fourth Proportional to 128,550.95, 192,950.81 and 62,037.90

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Solution

The fourth proportional to 128,550.95, 192,950.81 and 62,037.90 is: 93,116.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,550.95 : 192,950.81 = 62,037.90 : x
  2. Step 2: Convert to fraction form
    128,550.95/192,950.81 = 62,037.90/x
  3. Step 3: Cross multiply
    128,550.95x = 192,950.81 × 62,037.90
  4. Step 4: Simplify right side
    128,550.95x = 11,970,262,978.15
  5. Step 5: Solve for x
    x = 11,970,262,978.15/128,550.95
  6. Step 6: Final answer
    x = 93,116.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.