Home / 121,849.68-182,772.60-38,742.48

Finding the Fourth Proportional to 121,849.68, 182,772.60 and 38,742.48

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Solution

The fourth proportional to 121,849.68, 182,772.60 and 38,742.48 is: 58,113.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,849.68 : 182,772.60 = 38,742.48 : x
  2. Step 2: Convert to fraction form
    121,849.68/182,772.60 = 38,742.48/x
  3. Step 3: Cross multiply
    121,849.68x = 182,772.60 × 38,742.48
  4. Step 4: Simplify right side
    121,849.68x = 7,081,063,800.05
  5. Step 5: Solve for x
    x = 7,081,063,800.05/121,849.68
  6. Step 6: Final answer
    x = 58,113.11

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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.