Home / 121,591.44-182,451.38-86,280.93

Finding the Fourth Proportional to 121,591.44, 182,451.38 and 86,280.93

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Solution

The fourth proportional to 121,591.44, 182,451.38 and 86,280.93 is: 129,466.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,591.44 : 182,451.38 = 86,280.93 : x
  2. Step 2: Convert to fraction form
    121,591.44/182,451.38 = 86,280.93/x
  3. Step 3: Cross multiply
    121,591.44x = 182,451.38 × 86,280.93
  4. Step 4: Simplify right side
    121,591.44x = 15,742,074,314.78
  5. Step 5: Solve for x
    x = 15,742,074,314.78/121,591.44
  6. Step 6: Final answer
    x = 129,466.96

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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.