Home / 131,741.33-181,803.08-71,311.78

Finding the Fourth Proportional to 131,741.33, 181,803.08 and 71,311.78

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Solution

The fourth proportional to 131,741.33, 181,803.08 and 71,311.78 is: 98,410.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,741.33 : 181,803.08 = 71,311.78 : x
  2. Step 2: Convert to fraction form
    131,741.33/181,803.08 = 71,311.78/x
  3. Step 3: Cross multiply
    131,741.33x = 181,803.08 × 71,311.78
  4. Step 4: Simplify right side
    131,741.33x = 12,964,699,978.71
  5. Step 5: Solve for x
    x = 12,964,699,978.71/131,741.33
  6. Step 6: Final answer
    x = 98,410.27

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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.