Home / 124,743.78-186,989.59-53,712.74

Finding the Fourth Proportional to 124,743.78, 186,989.59 and 53,712.74

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Solution

The fourth proportional to 124,743.78, 186,989.59 and 53,712.74 is: 80,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,743.78 : 186,989.59 = 53,712.74 : x
  2. Step 2: Convert to fraction form
    124,743.78/186,989.59 = 53,712.74/x
  3. Step 3: Cross multiply
    124,743.78x = 186,989.59 × 53,712.74
  4. Step 4: Simplify right side
    124,743.78x = 10,043,723,230.38
  5. Step 5: Solve for x
    x = 10,043,723,230.38/124,743.78
  6. Step 6: Final answer
    x = 80,514.82

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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.