Home / 109,306.18-150,853.29-63,981.42

Finding the Fourth Proportional to 109,306.18, 150,853.29 and 63,981.42

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Solution

The fourth proportional to 109,306.18, 150,853.29 and 63,981.42 is: 88,300.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,306.18 : 150,853.29 = 63,981.42 : x
  2. Step 2: Convert to fraction form
    109,306.18/150,853.29 = 63,981.42/x
  3. Step 3: Cross multiply
    109,306.18x = 150,853.29 × 63,981.42
  4. Step 4: Simplify right side
    109,306.18x = 9,651,807,328.74
  5. Step 5: Solve for x
    x = 9,651,807,328.74/109,306.18
  6. Step 6: Final answer
    x = 88,300.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.