Home / 131,700.47-181,745.37-71,269.88

Finding the Fourth Proportional to 131,700.47, 181,745.37 and 71,269.88

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Solution

The fourth proportional to 131,700.47, 181,745.37 and 71,269.88 is: 98,351.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,700.47 : 181,745.37 = 71,269.88 : x
  2. Step 2: Convert to fraction form
    131,700.47/181,745.37 = 71,269.88/x
  3. Step 3: Cross multiply
    131,700.47x = 181,745.37 × 71,269.88
  4. Step 4: Simplify right side
    131,700.47x = 12,952,969,801.73
  5. Step 5: Solve for x
    x = 12,952,969,801.73/131,700.47
  6. Step 6: Final answer
    x = 98,351.74

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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.