Home / 191,419.07-287,148.24-73,189.85

Finding the Fourth Proportional to 191,419.07, 287,148.24 and 73,189.85

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Solution

The fourth proportional to 191,419.07, 287,148.24 and 73,189.85 is: 109,792.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,419.07 : 287,148.24 = 73,189.85 : x
  2. Step 2: Convert to fraction form
    191,419.07/287,148.24 = 73,189.85/x
  3. Step 3: Cross multiply
    191,419.07x = 287,148.24 × 73,189.85
  4. Step 4: Simplify right side
    191,419.07x = 21,016,335,177.62
  5. Step 5: Solve for x
    x = 21,016,335,177.62/191,419.07
  6. Step 6: Final answer
    x = 109,792.28

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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.