Home / 131,984.28-182,139.66-71,555.04

Finding the Fourth Proportional to 131,984.28, 182,139.66 and 71,555.04

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Solution

The fourth proportional to 131,984.28, 182,139.66 and 71,555.04 is: 98,746.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,984.28 : 182,139.66 = 71,555.04 : x
  2. Step 2: Convert to fraction form
    131,984.28/182,139.66 = 71,555.04/x
  3. Step 3: Cross multiply
    131,984.28x = 182,139.66 × 71,555.04
  4. Step 4: Simplify right side
    131,984.28x = 13,033,010,656.89
  5. Step 5: Solve for x
    x = 13,033,010,656.89/131,984.28
  6. Step 6: Final answer
    x = 98,746.69

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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.