Home / 121,880.09-182,832.30-45,959.42

Finding the Fourth Proportional to 121,880.09, 182,832.30 and 45,959.42

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Solution

The fourth proportional to 121,880.09, 182,832.30 and 45,959.42 is: 68,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,880.09 : 182,832.30 = 45,959.42 : x
  2. Step 2: Convert to fraction form
    121,880.09/182,832.30 = 45,959.42/x
  3. Step 3: Cross multiply
    121,880.09x = 182,832.30 × 45,959.42
  4. Step 4: Simplify right side
    121,880.09x = 8,402,865,551.10
  5. Step 5: Solve for x
    x = 8,402,865,551.10/121,880.09
  6. Step 6: Final answer
    x = 68,943.71

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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.