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Finding the Fourth Proportional to 136,145.90, 203,815.65 and 101,240.30

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Solution

The fourth proportional to 136,145.90, 203,815.65 and 101,240.30 is: 151,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,145.90 : 203,815.65 = 101,240.30 : x
  2. Step 2: Convert to fraction form
    136,145.90/203,815.65 = 101,240.30/x
  3. Step 3: Cross multiply
    136,145.90x = 203,815.65 × 101,240.30
  4. Step 4: Simplify right side
    136,145.90x = 20,634,357,550.70
  5. Step 5: Solve for x
    x = 20,634,357,550.70/136,145.90
  6. Step 6: Final answer
    x = 151,560.62

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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.