Home / 99,450.98-137,240.19-54,127.83

Finding the Fourth Proportional to 99,450.98, 137,240.19 and 54,127.83

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Solution

The fourth proportional to 99,450.98, 137,240.19 and 54,127.83 is: 74,695.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,450.98 : 137,240.19 = 54,127.83 : x
  2. Step 2: Convert to fraction form
    99,450.98/137,240.19 = 54,127.83/x
  3. Step 3: Cross multiply
    99,450.98x = 137,240.19 × 54,127.83
  4. Step 4: Simplify right side
    99,450.98x = 7,428,513,673.49
  5. Step 5: Solve for x
    x = 7,428,513,673.49/99,450.98
  6. Step 6: Final answer
    x = 74,695.23

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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.