Home / 121,433.10-182,149.65-119,100.30

Finding the Fourth Proportional to 121,433.10, 182,149.65 and 119,100.30

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Solution

The fourth proportional to 121,433.10, 182,149.65 and 119,100.30 is: 178,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,433.10 : 182,149.65 = 119,100.30 : x
  2. Step 2: Convert to fraction form
    121,433.10/182,149.65 = 119,100.30/x
  3. Step 3: Cross multiply
    121,433.10x = 182,149.65 × 119,100.30
  4. Step 4: Simplify right side
    121,433.10x = 21,694,077,959.90
  5. Step 5: Solve for x
    x = 21,694,077,959.90/121,433.10
  6. Step 6: Final answer
    x = 178,650.45

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1.5x scale

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.