Home / 99,264.58-137,001.45-72,495.70

Finding the Fourth Proportional to 99,264.58, 137,001.45 and 72,495.70

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Solution

The fourth proportional to 99,264.58, 137,001.45 and 72,495.70 is: 100,055.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,264.58 : 137,001.45 = 72,495.70 : x
  2. Step 2: Convert to fraction form
    99,264.58/137,001.45 = 72,495.70/x
  3. Step 3: Cross multiply
    99,264.58x = 137,001.45 × 72,495.70
  4. Step 4: Simplify right side
    99,264.58x = 9,932,016,018.77
  5. Step 5: Solve for x
    x = 9,932,016,018.77/99,264.58
  6. Step 6: Final answer
    x = 100,055.99

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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.