Home / 121,613.78-182,442.54-51,498.56

Finding the Fourth Proportional to 121,613.78, 182,442.54 and 51,498.56

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Solution

The fourth proportional to 121,613.78, 182,442.54 and 51,498.56 is: 77,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,613.78 : 182,442.54 = 51,498.56 : x
  2. Step 2: Convert to fraction form
    121,613.78/182,442.54 = 51,498.56/x
  3. Step 3: Cross multiply
    121,613.78x = 182,442.54 × 51,498.56
  4. Step 4: Simplify right side
    121,613.78x = 9,395,528,092.74
  5. Step 5: Solve for x
    x = 9,395,528,092.74/121,613.78
  6. Step 6: Final answer
    x = 77,257.10

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1.5x scale

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.