Home / 131,703.12-181,750.48-71,273.88

Finding the Fourth Proportional to 131,703.12, 181,750.48 and 71,273.88

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Solution

The fourth proportional to 131,703.12, 181,750.48 and 71,273.88 is: 98,358.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,703.12 : 181,750.48 = 71,273.88 : x
  2. Step 2: Convert to fraction form
    131,703.12/181,750.48 = 71,273.88/x
  3. Step 3: Cross multiply
    131,703.12x = 181,750.48 × 71,273.88
  4. Step 4: Simplify right side
    131,703.12x = 12,954,061,901.46
  5. Step 5: Solve for x
    x = 12,954,061,901.46/131,703.12
  6. Step 6: Final answer
    x = 98,358.05

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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.