Home / 99,463.23-137,382.56-72,195.77

Finding the Fourth Proportional to 99,463.23, 137,382.56 and 72,195.77

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Solution

The fourth proportional to 99,463.23, 137,382.56 and 72,195.77 is: 99,719.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,463.23 : 137,382.56 = 72,195.77 : x
  2. Step 2: Convert to fraction form
    99,463.23/137,382.56 = 72,195.77/x
  3. Step 3: Cross multiply
    99,463.23x = 137,382.56 × 72,195.77
  4. Step 4: Simplify right side
    99,463.23x = 9,918,438,655.88
  5. Step 5: Solve for x
    x = 9,918,438,655.88/99,463.23
  6. Step 6: Final answer
    x = 99,719.65

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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.