Home / 99,264.08-137,000.76-72,495.20

Finding the Fourth Proportional to 99,264.08, 137,000.76 and 72,495.20

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Solution

The fourth proportional to 99,264.08, 137,000.76 and 72,495.20 is: 100,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,264.08 : 137,000.76 = 72,495.20 : x
  2. Step 2: Convert to fraction form
    99,264.08/137,000.76 = 72,495.20/x
  3. Step 3: Cross multiply
    99,264.08x = 137,000.76 × 72,495.20
  4. Step 4: Simplify right side
    99,264.08x = 9,931,897,496.35
  5. Step 5: Solve for x
    x = 9,931,897,496.35/99,264.08
  6. Step 6: Final answer
    x = 100,055.30

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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.