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Finding the Fourth Proportional to 153,727.25, 230,660.93 and 78,899.93

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Solution

The fourth proportional to 153,727.25, 230,660.93 and 78,899.93 is: 118,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,727.25 : 230,660.93 = 78,899.93 : x
  2. Step 2: Convert to fraction form
    153,727.25/230,660.93 = 78,899.93/x
  3. Step 3: Cross multiply
    153,727.25x = 230,660.93 × 78,899.93
  4. Step 4: Simplify right side
    153,727.25x = 18,199,131,230.73
  5. Step 5: Solve for x
    x = 18,199,131,230.73/153,727.25
  6. Step 6: Final answer
    x = 118,385.85

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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.