Home / 131,883.68-181,999.50-71,454.72

Finding the Fourth Proportional to 131,883.68, 181,999.50 and 71,454.72

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Solution

The fourth proportional to 131,883.68, 181,999.50 and 71,454.72 is: 98,607.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,883.68 : 181,999.50 = 71,454.72 : x
  2. Step 2: Convert to fraction form
    131,883.68/181,999.50 = 71,454.72/x
  3. Step 3: Cross multiply
    131,883.68x = 181,999.50 × 71,454.72
  4. Step 4: Simplify right side
    131,883.68x = 13,004,723,312.64
  5. Step 5: Solve for x
    x = 13,004,723,312.64/131,883.68
  6. Step 6: Final answer
    x = 98,607.53

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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.