Home / 361,849.60-542,823.96-125,128.72

Finding the Fourth Proportional to 361,849.60, 542,823.96 and 125,128.72

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Solution

The fourth proportional to 361,849.60, 542,823.96 and 125,128.72 is: 187,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,849.60 : 542,823.96 = 125,128.72 : x
  2. Step 2: Convert to fraction form
    361,849.60/542,823.96 = 125,128.72/x
  3. Step 3: Cross multiply
    361,849.60x = 542,823.96 × 125,128.72
  4. Step 4: Simplify right side
    361,849.60x = 67,922,867,300.13
  5. Step 5: Solve for x
    x = 67,922,867,300.13/361,849.60
  6. Step 6: Final answer
    x = 187,710.22

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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.