Home / 84,841.20-127,002.60-66,178.80

Finding the Fourth Proportional to 84,841.20, 127,002.60 and 66,178.80

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Solution

The fourth proportional to 84,841.20, 127,002.60 and 66,178.80 is: 99,066.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,841.20 : 127,002.60 = 66,178.80 : x
  2. Step 2: Convert to fraction form
    84,841.20/127,002.60 = 66,178.80/x
  3. Step 3: Cross multiply
    84,841.20x = 127,002.60 × 66,178.80
  4. Step 4: Simplify right side
    84,841.20x = 8,404,879,664.88
  5. Step 5: Solve for x
    x = 8,404,879,664.88/84,841.20
  6. Step 6: Final answer
    x = 99,066.02

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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.