Home / 239,425.20-359,186.40-81,669.60

Finding the Fourth Proportional to 239,425.20, 359,186.40 and 81,669.60

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Solution

The fourth proportional to 239,425.20, 359,186.40 and 81,669.60 is: 122,520.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,425.20 : 359,186.40 = 81,669.60 : x
  2. Step 2: Convert to fraction form
    239,425.20/359,186.40 = 81,669.60/x
  3. Step 3: Cross multiply
    239,425.20x = 359,186.40 × 81,669.60
  4. Step 4: Simplify right side
    239,425.20x = 29,334,609,613.44
  5. Step 5: Solve for x
    x = 29,334,609,613.44/239,425.20
  6. Step 6: Final answer
    x = 122,520.98

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1.5x scale

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.