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Finding the Fourth Proportional to 158,879.32, 238,380.72 and 70,070.20

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Solution

The fourth proportional to 158,879.32, 238,380.72 and 70,070.20 is: 105,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,879.32 : 238,380.72 = 70,070.20 : x
  2. Step 2: Convert to fraction form
    158,879.32/238,380.72 = 70,070.20/x
  3. Step 3: Cross multiply
    158,879.32x = 238,380.72 × 70,070.20
  4. Step 4: Simplify right side
    158,879.32x = 16,703,384,726.54
  5. Step 5: Solve for x
    x = 16,703,384,726.54/158,879.32
  6. Step 6: Final answer
    x = 105,132.53

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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.