Home / 131,876.92-181,990.19-71,447.98

Finding the Fourth Proportional to 131,876.92, 181,990.19 and 71,447.98

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Solution

The fourth proportional to 131,876.92, 181,990.19 and 71,447.98 is: 98,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,876.92 : 181,990.19 = 71,447.98 : x
  2. Step 2: Convert to fraction form
    131,876.92/181,990.19 = 71,447.98/x
  3. Step 3: Cross multiply
    131,876.92x = 181,990.19 × 71,447.98
  4. Step 4: Simplify right side
    131,876.92x = 13,002,831,455.32
  5. Step 5: Solve for x
    x = 13,002,831,455.32/131,876.92
  6. Step 6: Final answer
    x = 98,598.23

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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.