Home / 137,549.22-189,851.69-83,863.84

Finding the Fourth Proportional to 137,549.22, 189,851.69 and 83,863.84

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Solution

The fourth proportional to 137,549.22, 189,851.69 and 83,863.84 is: 115,752.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,549.22 : 189,851.69 = 83,863.84 : x
  2. Step 2: Convert to fraction form
    137,549.22/189,851.69 = 83,863.84/x
  3. Step 3: Cross multiply
    137,549.22x = 189,851.69 × 83,863.84
  4. Step 4: Simplify right side
    137,549.22x = 15,921,691,753.89
  5. Step 5: Solve for x
    x = 15,921,691,753.89/137,549.22
  6. Step 6: Final answer
    x = 115,752.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.