Home / 128,437.02-192,528.99-75,061.26

Finding the Fourth Proportional to 128,437.02, 192,528.99 and 75,061.26

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Solution

The fourth proportional to 128,437.02, 192,528.99 and 75,061.26 is: 112,517.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,437.02 : 192,528.99 = 75,061.26 : x
  2. Step 2: Convert to fraction form
    128,437.02/192,528.99 = 75,061.26/x
  3. Step 3: Cross multiply
    128,437.02x = 192,528.99 × 75,061.26
  4. Step 4: Simplify right side
    128,437.02x = 14,451,468,575.93
  5. Step 5: Solve for x
    x = 14,451,468,575.93/128,437.02
  6. Step 6: Final answer
    x = 112,517.94

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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.