Home / 124,979.31-187,488.41-40,719.87

Finding the Fourth Proportional to 124,979.31, 187,488.41 and 40,719.87

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Solution

The fourth proportional to 124,979.31, 187,488.41 and 40,719.87 is: 61,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,979.31 : 187,488.41 = 40,719.87 : x
  2. Step 2: Convert to fraction form
    124,979.31/187,488.41 = 40,719.87/x
  3. Step 3: Cross multiply
    124,979.31x = 187,488.41 × 40,719.87
  4. Step 4: Simplify right side
    124,979.31x = 7,634,503,478.11
  5. Step 5: Solve for x
    x = 7,634,503,478.11/124,979.31
  6. Step 6: Final answer
    x = 61,086.14

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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.