Home / 138,434.19-207,479.97-98,389.37

Finding the Fourth Proportional to 138,434.19, 207,479.97 and 98,389.37

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Solution

The fourth proportional to 138,434.19, 207,479.97 and 98,389.37 is: 147,462.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,434.19 : 207,479.97 = 98,389.37 : x
  2. Step 2: Convert to fraction form
    138,434.19/207,479.97 = 98,389.37/x
  3. Step 3: Cross multiply
    138,434.19x = 207,479.97 × 98,389.37
  4. Step 4: Simplify right side
    138,434.19x = 20,413,822,498.52
  5. Step 5: Solve for x
    x = 20,413,822,498.52/138,434.19
  6. Step 6: Final answer
    x = 147,462.29

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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.