Home / 105,397.20-158,104.12-35,276.80

Finding the Fourth Proportional to 105,397.20, 158,104.12 and 35,276.80

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Solution

The fourth proportional to 105,397.20, 158,104.12 and 35,276.80 is: 52,917.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,397.20 : 158,104.12 = 35,276.80 : x
  2. Step 2: Convert to fraction form
    105,397.20/158,104.12 = 35,276.80/x
  3. Step 3: Cross multiply
    105,397.20x = 158,104.12 × 35,276.80
  4. Step 4: Simplify right side
    105,397.20x = 5,577,407,420.42
  5. Step 5: Solve for x
    x = 5,577,407,420.42/105,397.20
  6. Step 6: Final answer
    x = 52,917.98

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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.