Home / 191,505.30-287,236.17-73,174.02

Finding the Fourth Proportional to 191,505.30, 287,236.17 and 73,174.02

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Solution

The fourth proportional to 191,505.30, 287,236.17 and 73,174.02 is: 109,752.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,505.30 : 287,236.17 = 73,174.02 : x
  2. Step 2: Convert to fraction form
    191,505.30/287,236.17 = 73,174.02/x
  3. Step 3: Cross multiply
    191,505.30x = 287,236.17 × 73,174.02
  4. Step 4: Simplify right side
    191,505.30x = 21,018,225,248.30
  5. Step 5: Solve for x
    x = 21,018,225,248.30/191,505.30
  6. Step 6: Final answer
    x = 109,752.71

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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.