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Finding the Fourth Proportional to 111,001.70, 166,502.55 and 100,892.90

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Solution

The fourth proportional to 111,001.70, 166,502.55 and 100,892.90 is: 151,339.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,001.70 : 166,502.55 = 100,892.90 : x
  2. Step 2: Convert to fraction form
    111,001.70/166,502.55 = 100,892.90/x
  3. Step 3: Cross multiply
    111,001.70x = 166,502.55 × 100,892.90
  4. Step 4: Simplify right side
    111,001.70x = 16,798,925,126.90
  5. Step 5: Solve for x
    x = 16,798,925,126.90/111,001.70
  6. Step 6: Final answer
    x = 151,339.35

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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.