Home / 121,962.54-182,943.80-80,399.82

Finding the Fourth Proportional to 121,962.54, 182,943.80 and 80,399.82

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Solution

The fourth proportional to 121,962.54, 182,943.80 and 80,399.82 is: 120,599.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,962.54 : 182,943.80 = 80,399.82 : x
  2. Step 2: Convert to fraction form
    121,962.54/182,943.80 = 80,399.82/x
  3. Step 3: Cross multiply
    121,962.54x = 182,943.80 × 80,399.82
  4. Step 4: Simplify right side
    121,962.54x = 14,708,648,590.12
  5. Step 5: Solve for x
    x = 14,708,648,590.12/121,962.54
  6. Step 6: Final answer
    x = 120,599.72

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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.