Home / 131,799.80-181,881.44-71,369.96

Finding the Fourth Proportional to 131,799.80, 181,881.44 and 71,369.96

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Solution

The fourth proportional to 131,799.80, 181,881.44 and 71,369.96 is: 98,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,799.80 : 181,881.44 = 71,369.96 : x
  2. Step 2: Convert to fraction form
    131,799.80/181,881.44 = 71,369.96/x
  3. Step 3: Cross multiply
    131,799.80x = 181,881.44 × 71,369.96
  4. Step 4: Simplify right side
    131,799.80x = 12,980,871,097.54
  5. Step 5: Solve for x
    x = 12,980,871,097.54/131,799.80
  6. Step 6: Final answer
    x = 98,489.31

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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.