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Finding the Fourth Proportional to 158,532.03, 218,773.41 and 85,934.65

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Solution

The fourth proportional to 158,532.03, 218,773.41 and 85,934.65 is: 118,589.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,532.03 : 218,773.41 = 85,934.65 : x
  2. Step 2: Convert to fraction form
    158,532.03/218,773.41 = 85,934.65/x
  3. Step 3: Cross multiply
    158,532.03x = 218,773.41 × 85,934.65
  4. Step 4: Simplify right side
    158,532.03x = 18,800,216,417.66
  5. Step 5: Solve for x
    x = 18,800,216,417.66/158,532.03
  6. Step 6: Final answer
    x = 118,589.39

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1.5x scale

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.