Home / 138,772.52-191,505.96-75,110.18

Finding the Fourth Proportional to 138,772.52, 191,505.96 and 75,110.18

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Solution

The fourth proportional to 138,772.52, 191,505.96 and 75,110.18 is: 103,651.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,772.52 : 191,505.96 = 75,110.18 : x
  2. Step 2: Convert to fraction form
    138,772.52/191,505.96 = 75,110.18/x
  3. Step 3: Cross multiply
    138,772.52x = 191,505.96 × 75,110.18
  4. Step 4: Simplify right side
    138,772.52x = 14,384,047,126.67
  5. Step 5: Solve for x
    x = 14,384,047,126.67/138,772.52
  6. Step 6: Final answer
    x = 103,651.98

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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.