Home / 129,255.12-193,802.76-50,276.88

Finding the Fourth Proportional to 129,255.12, 193,802.76 and 50,276.88

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Solution

The fourth proportional to 129,255.12, 193,802.76 and 50,276.88 is: 75,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,255.12 : 193,802.76 = 50,276.88 : x
  2. Step 2: Convert to fraction form
    129,255.12/193,802.76 = 50,276.88/x
  3. Step 3: Cross multiply
    129,255.12x = 193,802.76 × 50,276.88
  4. Step 4: Simplify right side
    129,255.12x = 9,743,798,108.19
  5. Step 5: Solve for x
    x = 9,743,798,108.19/129,255.12
  6. Step 6: Final answer
    x = 75,384.23

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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.