Home / 138,201.57-207,317.17-38,362.19

Finding the Fourth Proportional to 138,201.57, 207,317.17 and 38,362.19

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Solution

The fourth proportional to 138,201.57, 207,317.17 and 38,362.19 is: 57,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,201.57 : 207,317.17 = 38,362.19 : x
  2. Step 2: Convert to fraction form
    138,201.57/207,317.17 = 38,362.19/x
  3. Step 3: Cross multiply
    138,201.57x = 207,317.17 × 38,362.19
  4. Step 4: Simplify right side
    138,201.57x = 7,953,140,665.80
  5. Step 5: Solve for x
    x = 7,953,140,665.80/138,201.57
  6. Step 6: Final answer
    x = 57,547.40

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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.