Home / 131,855.14-181,960.15-71,425.60

Finding the Fourth Proportional to 131,855.14, 181,960.15 and 71,425.60

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Solution

The fourth proportional to 131,855.14, 181,960.15 and 71,425.60 is: 98,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,855.14 : 181,960.15 = 71,425.60 : x
  2. Step 2: Convert to fraction form
    131,855.14/181,960.15 = 71,425.60/x
  3. Step 3: Cross multiply
    131,855.14x = 181,960.15 × 71,425.60
  4. Step 4: Simplify right side
    131,855.14x = 12,996,612,189.41
  5. Step 5: Solve for x
    x = 12,996,612,189.41/131,855.14
  6. Step 6: Final answer
    x = 98,567.35

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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.