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Finding the Fourth Proportional to 136,257.73, 205,666.45 and 136,257.73

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Solution

The fourth proportional to 136,257.73, 205,666.45 and 136,257.73 is: 205,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,257.73 : 205,666.45 = 136,257.73 : x
  2. Step 2: Convert to fraction form
    136,257.73/205,666.45 = 136,257.73/x
  3. Step 3: Cross multiply
    136,257.73x = 205,666.45 × 136,257.73
  4. Step 4: Simplify right side
    136,257.73x = 28,023,643,614.16
  5. Step 5: Solve for x
    x = 28,023,643,614.16/136,257.73
  6. Step 6: Final answer
    x = 205,666.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.