Home / 131,766.45-181,837.77-71,337.11

Finding the Fourth Proportional to 131,766.45, 181,837.77 and 71,337.11

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Solution

The fourth proportional to 131,766.45, 181,837.77 and 71,337.11 is: 98,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,766.45 : 181,837.77 = 71,337.11 : x
  2. Step 2: Convert to fraction form
    131,766.45/181,837.77 = 71,337.11/x
  3. Step 3: Cross multiply
    131,766.45x = 181,837.77 × 71,337.11
  4. Step 4: Simplify right side
    131,766.45x = 12,971,780,091.46
  5. Step 5: Solve for x
    x = 12,971,780,091.46/131,766.45
  6. Step 6: Final answer
    x = 98,445.24

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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.