Home / 129,544.40-194,363.32-45,317.20

Finding the Fourth Proportional to 129,544.40, 194,363.32 and 45,317.20

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Solution

The fourth proportional to 129,544.40, 194,363.32 and 45,317.20 is: 67,992.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,544.40 : 194,363.32 = 45,317.20 : x
  2. Step 2: Convert to fraction form
    129,544.40/194,363.32 = 45,317.20/x
  3. Step 3: Cross multiply
    129,544.40x = 194,363.32 × 45,317.20
  4. Step 4: Simplify right side
    129,544.40x = 8,808,001,445.10
  5. Step 5: Solve for x
    x = 8,808,001,445.10/129,544.40
  6. Step 6: Final answer
    x = 67,992.14

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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.