Home / 121,280.10-182,006.55-51,209.70

Finding the Fourth Proportional to 121,280.10, 182,006.55 and 51,209.70

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Solution

The fourth proportional to 121,280.10, 182,006.55 and 51,209.70 is: 76,851.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,280.10 : 182,006.55 = 51,209.70 : x
  2. Step 2: Convert to fraction form
    121,280.10/182,006.55 = 51,209.70/x
  3. Step 3: Cross multiply
    121,280.10x = 182,006.55 × 51,209.70
  4. Step 4: Simplify right side
    121,280.10x = 9,320,500,823.54
  5. Step 5: Solve for x
    x = 9,320,500,823.54/121,280.10
  6. Step 6: Final answer
    x = 76,851.03

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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.