Home / 131,614.56-181,628.08-71,185.20

Finding the Fourth Proportional to 131,614.56, 181,628.08 and 71,185.20

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Solution

The fourth proportional to 131,614.56, 181,628.08 and 71,185.20 is: 98,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,614.56 : 181,628.08 = 71,185.20 : x
  2. Step 2: Convert to fraction form
    131,614.56/181,628.08 = 71,185.20/x
  3. Step 3: Cross multiply
    131,614.56x = 181,628.08 × 71,185.20
  4. Step 4: Simplify right side
    131,614.56x = 12,929,231,200.42
  5. Step 5: Solve for x
    x = 12,929,231,200.42/131,614.56
  6. Step 6: Final answer
    x = 98,235.57

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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.