Home / 138,436.19-207,482.97-98,391.37

Finding the Fourth Proportional to 138,436.19, 207,482.97 and 98,391.37

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Solution

The fourth proportional to 138,436.19, 207,482.97 and 98,391.37 is: 147,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,436.19 : 207,482.97 = 98,391.37 : x
  2. Step 2: Convert to fraction form
    138,436.19/207,482.97 = 98,391.37/x
  3. Step 3: Cross multiply
    138,436.19x = 207,482.97 × 98,391.37
  4. Step 4: Simplify right side
    138,436.19x = 20,414,533,669.97
  5. Step 5: Solve for x
    x = 20,414,533,669.97/138,436.19
  6. Step 6: Final answer
    x = 147,465.30

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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.