Home / 123,927.04-171,159.78-83,571.04

Finding the Fourth Proportional to 123,927.04, 171,159.78 and 83,571.04

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Solution

The fourth proportional to 123,927.04, 171,159.78 and 83,571.04 is: 115,422.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,927.04 : 171,159.78 = 83,571.04 : x
  2. Step 2: Convert to fraction form
    123,927.04/171,159.78 = 83,571.04/x
  3. Step 3: Cross multiply
    123,927.04x = 171,159.78 × 83,571.04
  4. Step 4: Simplify right side
    123,927.04x = 14,304,000,820.77
  5. Step 5: Solve for x
    x = 14,304,000,820.77/123,927.04
  6. Step 6: Final answer
    x = 115,422.76

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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.