Home / 129,344.40-194,448.60-112,237.20

Finding the Fourth Proportional to 129,344.40, 194,448.60 and 112,237.20

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Solution

The fourth proportional to 129,344.40, 194,448.60 and 112,237.20 is: 168,730.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,344.40 : 194,448.60 = 112,237.20 : x
  2. Step 2: Convert to fraction form
    129,344.40/194,448.60 = 112,237.20/x
  3. Step 3: Cross multiply
    129,344.40x = 194,448.60 × 112,237.20
  4. Step 4: Simplify right side
    129,344.40x = 21,824,366,407.92
  5. Step 5: Solve for x
    x = 21,824,366,407.92/129,344.40
  6. Step 6: Final answer
    x = 168,730.66

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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.