Home / 121,587.40-182,316.30-51,387.40

Finding the Fourth Proportional to 121,587.40, 182,316.30 and 51,387.40

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Solution

The fourth proportional to 121,587.40, 182,316.30 and 51,387.40 is: 77,053.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,587.40 : 182,316.30 = 51,387.40 : x
  2. Step 2: Convert to fraction form
    121,587.40/182,316.30 = 51,387.40/x
  3. Step 3: Cross multiply
    121,587.40x = 182,316.30 × 51,387.40
  4. Step 4: Simplify right side
    121,587.40x = 9,368,760,634.62
  5. Step 5: Solve for x
    x = 9,368,760,634.62/121,587.40
  6. Step 6: Final answer
    x = 77,053.71

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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.