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Finding the Fourth Proportional to 136,750.38, 188,454.47 and 98,442.34

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Solution

The fourth proportional to 136,750.38, 188,454.47 and 98,442.34 is: 135,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,750.38 : 188,454.47 = 98,442.34 : x
  2. Step 2: Convert to fraction form
    136,750.38/188,454.47 = 98,442.34/x
  3. Step 3: Cross multiply
    136,750.38x = 188,454.47 × 98,442.34
  4. Step 4: Simplify right side
    136,750.38x = 18,551,898,877.52
  5. Step 5: Solve for x
    x = 18,551,898,877.52/136,750.38
  6. Step 6: Final answer
    x = 135,662.51

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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.