Home / 121,474.91-182,273.90-81,949.01

Finding the Fourth Proportional to 121,474.91, 182,273.90 and 81,949.01

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Solution

The fourth proportional to 121,474.91, 182,273.90 and 81,949.01 is: 122,965.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,474.91 : 182,273.90 = 81,949.01 : x
  2. Step 2: Convert to fraction form
    121,474.91/182,273.90 = 81,949.01/x
  3. Step 3: Cross multiply
    121,474.91x = 182,273.90 × 81,949.01
  4. Step 4: Simplify right side
    121,474.91x = 14,937,164,332.72
  5. Step 5: Solve for x
    x = 14,937,164,332.72/121,474.91
  6. Step 6: Final answer
    x = 122,965.01

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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.