Home / 198,117.20-297,175.80-73,432.40

Finding the Fourth Proportional to 198,117.20, 297,175.80 and 73,432.40

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Solution

The fourth proportional to 198,117.20, 297,175.80 and 73,432.40 is: 110,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,117.20 : 297,175.80 = 73,432.40 : x
  2. Step 2: Convert to fraction form
    198,117.20/297,175.80 = 73,432.40/x
  3. Step 3: Cross multiply
    198,117.20x = 297,175.80 × 73,432.40
  4. Step 4: Simplify right side
    198,117.20x = 21,822,332,215.92
  5. Step 5: Solve for x
    x = 21,822,332,215.92/198,117.20
  6. Step 6: Final answer
    x = 110,148.60

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1.5x scale

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.