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Finding the Fourth Proportional to 101,001.60, 151,502.40 and 85,449.60

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Solution

The fourth proportional to 101,001.60, 151,502.40 and 85,449.60 is: 128,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,001.60 : 151,502.40 = 85,449.60 : x
  2. Step 2: Convert to fraction form
    101,001.60/151,502.40 = 85,449.60/x
  3. Step 3: Cross multiply
    101,001.60x = 151,502.40 × 85,449.60
  4. Step 4: Simplify right side
    101,001.60x = 12,945,819,479.04
  5. Step 5: Solve for x
    x = 12,945,819,479.04/101,001.60
  6. Step 6: Final answer
    x = 128,174.40

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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.