Home / 98,542.20-147,813.30-67,049.40

Finding the Fourth Proportional to 98,542.20, 147,813.30 and 67,049.40

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Solution

The fourth proportional to 98,542.20, 147,813.30 and 67,049.40 is: 100,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,542.20 : 147,813.30 = 67,049.40 : x
  2. Step 2: Convert to fraction form
    98,542.20/147,813.30 = 67,049.40/x
  3. Step 3: Cross multiply
    98,542.20x = 147,813.30 × 67,049.40
  4. Step 4: Simplify right side
    98,542.20x = 9,910,793,077.02
  5. Step 5: Solve for x
    x = 9,910,793,077.02/98,542.20
  6. Step 6: Final answer
    x = 100,574.10

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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.