Home / 131,425.64-181,304.16-86,084

Finding the Fourth Proportional to 131,425.64, 181,304.16 and 86,084

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Solution

The fourth proportional to 131,425.64, 181,304.16 and 86,084 is: 118,754.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,425.64 : 181,304.16 = 86,084 : x
  2. Step 2: Convert to fraction form
    131,425.64/181,304.16 = 86,084/x
  3. Step 3: Cross multiply
    131,425.64x = 181,304.16 × 86,084
  4. Step 4: Simplify right side
    131,425.64x = 15,607,387,309.44
  5. Step 5: Solve for x
    x = 15,607,387,309.44/131,425.64
  6. Step 6: Final answer
    x = 118,754.51

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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.