Home / 121,290.20-182,000.10-54,740.60

Finding the Fourth Proportional to 121,290.20, 182,000.10 and 54,740.60

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Solution

The fourth proportional to 121,290.20, 182,000.10 and 54,740.60 is: 82,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,290.20 : 182,000.10 = 54,740.60 : x
  2. Step 2: Convert to fraction form
    121,290.20/182,000.10 = 54,740.60/x
  3. Step 3: Cross multiply
    121,290.20x = 182,000.10 × 54,740.60
  4. Step 4: Simplify right side
    121,290.20x = 9,962,794,674.06
  5. Step 5: Solve for x
    x = 9,962,794,674.06/121,290.20
  6. Step 6: Final answer
    x = 82,140.15

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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.