Home / 99,417.62-137,192.19-54,095.78

Finding the Fourth Proportional to 99,417.62, 137,192.19 and 54,095.78

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Solution

The fourth proportional to 99,417.62, 137,192.19 and 54,095.78 is: 74,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,417.62 : 137,192.19 = 54,095.78 : x
  2. Step 2: Convert to fraction form
    99,417.62/137,192.19 = 54,095.78/x
  3. Step 3: Cross multiply
    99,417.62x = 137,192.19 × 54,095.78
  4. Step 4: Simplify right side
    99,417.62x = 7,421,517,842.00
  5. Step 5: Solve for x
    x = 7,421,517,842.00/99,417.62
  6. Step 6: Final answer
    x = 74,649.93

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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.