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Finding the Fourth Proportional to 158,874.16, 219,245.48 and 86,276.42

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Solution

The fourth proportional to 158,874.16, 219,245.48 and 86,276.42 is: 119,060.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,874.16 : 219,245.48 = 86,276.42 : x
  2. Step 2: Convert to fraction form
    158,874.16/219,245.48 = 86,276.42/x
  3. Step 3: Cross multiply
    158,874.16x = 219,245.48 × 86,276.42
  4. Step 4: Simplify right side
    158,874.16x = 18,915,715,115.58
  5. Step 5: Solve for x
    x = 18,915,715,115.58/158,874.16
  6. Step 6: Final answer
    x = 119,060.99

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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.