Home / 99,266.08-137,003.52-72,497.20

Finding the Fourth Proportional to 99,266.08, 137,003.52 and 72,497.20

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Solution

The fourth proportional to 99,266.08, 137,003.52 and 72,497.20 is: 100,058.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,266.08 : 137,003.52 = 72,497.20 : x
  2. Step 2: Convert to fraction form
    99,266.08/137,003.52 = 72,497.20/x
  3. Step 3: Cross multiply
    99,266.08x = 137,003.52 × 72,497.20
  4. Step 4: Simplify right side
    99,266.08x = 9,932,371,590.14
  5. Step 5: Solve for x
    x = 9,932,371,590.14/99,266.08
  6. Step 6: Final answer
    x = 100,058.06

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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.