Home / 98,150.57-147,132.28-31,543.90

Finding the Fourth Proportional to 98,150.57, 147,132.28 and 31,543.90

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Solution

The fourth proportional to 98,150.57, 147,132.28 and 31,543.90 is: 47,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,150.57 : 147,132.28 = 31,543.90 : x
  2. Step 2: Convert to fraction form
    98,150.57/147,132.28 = 31,543.90/x
  3. Step 3: Cross multiply
    98,150.57x = 147,132.28 × 31,543.90
  4. Step 4: Simplify right side
    98,150.57x = 4,641,125,598.69
  5. Step 5: Solve for x
    x = 4,641,125,598.69/98,150.57
  6. Step 6: Final answer
    x = 47,285.77

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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.