Home / 131,855.16-181,961.00-71,425.81

Finding the Fourth Proportional to 131,855.16, 181,961.00 and 71,425.81

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Solution

The fourth proportional to 131,855.16, 181,961.00 and 71,425.81 is: 98,568.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,855.16 : 181,961.00 = 71,425.81 : x
  2. Step 2: Convert to fraction form
    131,855.16/181,961.00 = 71,425.81/x
  3. Step 3: Cross multiply
    131,855.16x = 181,961.00 × 71,425.81
  4. Step 4: Simplify right side
    131,855.16x = 12,996,710,546.48
  5. Step 5: Solve for x
    x = 12,996,710,546.48/131,855.16
  6. Step 6: Final answer
    x = 98,568.08

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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.