Home / 123,932.84-171,079.70-83,701.15

Finding the Fourth Proportional to 123,932.84, 171,079.70 and 83,701.15

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Solution

The fourth proportional to 123,932.84, 171,079.70 and 83,701.15 is: 115,542.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,932.84 : 171,079.70 = 83,701.15 : x
  2. Step 2: Convert to fraction form
    123,932.84/171,079.70 = 83,701.15/x
  3. Step 3: Cross multiply
    123,932.84x = 171,079.70 × 83,701.15
  4. Step 4: Simplify right side
    123,932.84x = 14,319,566,785.45
  5. Step 5: Solve for x
    x = 14,319,566,785.45/123,932.84
  6. Step 6: Final answer
    x = 115,542.96

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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.