Home / 265,669.60-398,387.04-76,086.96

Finding the Fourth Proportional to 265,669.60, 398,387.04 and 76,086.96

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Solution

The fourth proportional to 265,669.60, 398,387.04 and 76,086.96 is: 114,096.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,669.60 : 398,387.04 = 76,086.96 : x
  2. Step 2: Convert to fraction form
    265,669.60/398,387.04 = 76,086.96/x
  3. Step 3: Cross multiply
    265,669.60x = 398,387.04 × 76,086.96
  4. Step 4: Simplify right side
    265,669.60x = 30,312,058,777.00
  5. Step 5: Solve for x
    x = 30,312,058,777.00/265,669.60
  6. Step 6: Final answer
    x = 114,096.83

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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.