Home / 131,757.15-181,823.36-71,326.46

Finding the Fourth Proportional to 131,757.15, 181,823.36 and 71,326.46

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Solution

The fourth proportional to 131,757.15, 181,823.36 and 71,326.46 is: 98,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,757.15 : 181,823.36 = 71,326.46 : x
  2. Step 2: Convert to fraction form
    131,757.15/181,823.36 = 71,326.46/x
  3. Step 3: Cross multiply
    131,757.15x = 181,823.36 × 71,326.46
  4. Step 4: Simplify right side
    131,757.15x = 12,968,816,712.03
  5. Step 5: Solve for x
    x = 12,968,816,712.03/131,757.15
  6. Step 6: Final answer
    x = 98,429.70

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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.