Home / 191,507.30-287,239.17-73,176.02

Finding the Fourth Proportional to 191,507.30, 287,239.17 and 73,176.02

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Solution

The fourth proportional to 191,507.30, 287,239.17 and 73,176.02 is: 109,755.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,507.30 : 287,239.17 = 73,176.02 : x
  2. Step 2: Convert to fraction form
    191,507.30/287,239.17 = 73,176.02/x
  3. Step 3: Cross multiply
    191,507.30x = 287,239.17 × 73,176.02
  4. Step 4: Simplify right side
    191,507.30x = 21,019,019,248.70
  5. Step 5: Solve for x
    x = 21,019,019,248.70/191,507.30
  6. Step 6: Final answer
    x = 109,755.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.