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Finding the Fourth Proportional to 136,188.52, 204,282.78 and 42,701.80

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Solution

The fourth proportional to 136,188.52, 204,282.78 and 42,701.80 is: 64,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,188.52 : 204,282.78 = 42,701.80 : x
  2. Step 2: Convert to fraction form
    136,188.52/204,282.78 = 42,701.80/x
  3. Step 3: Cross multiply
    136,188.52x = 204,282.78 × 42,701.80
  4. Step 4: Simplify right side
    136,188.52x = 8,723,242,415.00
  5. Step 5: Solve for x
    x = 8,723,242,415.00/136,188.52
  6. Step 6: Final answer
    x = 64,052.70

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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.