Home / 129,882.39-179,241.96-75,430.34

Finding the Fourth Proportional to 129,882.39, 179,241.96 and 75,430.34

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Solution

The fourth proportional to 129,882.39, 179,241.96 and 75,430.34 is: 104,096.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,882.39 : 179,241.96 = 75,430.34 : x
  2. Step 2: Convert to fraction form
    129,882.39/179,241.96 = 75,430.34/x
  3. Step 3: Cross multiply
    129,882.39x = 179,241.96 × 75,430.34
  4. Step 4: Simplify right side
    129,882.39x = 13,520,281,088.86
  5. Step 5: Solve for x
    x = 13,520,281,088.86/129,882.39
  6. Step 6: Final answer
    x = 104,096.34

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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.