Home / 121,390.66-182,143.77-54,851.14

Finding the Fourth Proportional to 121,390.66, 182,143.77 and 54,851.14

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Solution

The fourth proportional to 121,390.66, 182,143.77 and 54,851.14 is: 82,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,390.66 : 182,143.77 = 54,851.14 : x
  2. Step 2: Convert to fraction form
    121,390.66/182,143.77 = 54,851.14/x
  3. Step 3: Cross multiply
    121,390.66x = 182,143.77 × 54,851.14
  4. Step 4: Simplify right side
    121,390.66x = 9,990,793,428.40
  5. Step 5: Solve for x
    x = 9,990,793,428.40/121,390.66
  6. Step 6: Final answer
    x = 82,302.82

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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.