Home / 121,849.78-182,844.53-65,689.64

Finding the Fourth Proportional to 121,849.78, 182,844.53 and 65,689.64

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Solution

The fourth proportional to 121,849.78, 182,844.53 and 65,689.64 is: 98,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,849.78 : 182,844.53 = 65,689.64 : x
  2. Step 2: Convert to fraction form
    121,849.78/182,844.53 = 65,689.64/x
  3. Step 3: Cross multiply
    121,849.78x = 182,844.53 × 65,689.64
  4. Step 4: Simplify right side
    121,849.78x = 12,010,991,351.67
  5. Step 5: Solve for x
    x = 12,010,991,351.67/121,849.78
  6. Step 6: Final answer
    x = 98,572.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.