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Finding the Fourth Proportional to 125,609.58, 173,168.01 and 100,202.18

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Solution

The fourth proportional to 125,609.58, 173,168.01 and 100,202.18 is: 138,140.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,609.58 : 173,168.01 = 100,202.18 : x
  2. Step 2: Convert to fraction form
    125,609.58/173,168.01 = 100,202.18/x
  3. Step 3: Cross multiply
    125,609.58x = 173,168.01 × 100,202.18
  4. Step 4: Simplify right side
    125,609.58x = 17,351,811,242.42
  5. Step 5: Solve for x
    x = 17,351,811,242.42/125,609.58
  6. Step 6: Final answer
    x = 138,140.83

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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.