Home / 342,742.33-513,971.58-129,473.86

Finding the Fourth Proportional to 342,742.33, 513,971.58 and 129,473.86

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Solution

The fourth proportional to 342,742.33, 513,971.58 and 129,473.86 is: 194,157.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,742.33 : 513,971.58 = 129,473.86 : x
  2. Step 2: Convert to fraction form
    342,742.33/513,971.58 = 129,473.86/x
  3. Step 3: Cross multiply
    342,742.33x = 513,971.58 × 129,473.86
  4. Step 4: Simplify right side
    342,742.33x = 66,545,884,392.90
  5. Step 5: Solve for x
    x = 66,545,884,392.90/342,742.33
  6. Step 6: Final answer
    x = 194,157.18

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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.