Home / 131,899.20-182,020.32-71,470.08

Finding the Fourth Proportional to 131,899.20, 182,020.32 and 71,470.08

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Solution

The fourth proportional to 131,899.20, 182,020.32 and 71,470.08 is: 98,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,899.20 : 182,020.32 = 71,470.08 : x
  2. Step 2: Convert to fraction form
    131,899.20/182,020.32 = 71,470.08/x
  3. Step 3: Cross multiply
    131,899.20x = 182,020.32 × 71,470.08
  4. Step 4: Simplify right side
    131,899.20x = 13,009,006,832.03
  5. Step 5: Solve for x
    x = 13,009,006,832.03/131,899.20
  6. Step 6: Final answer
    x = 98,628.40

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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.