Home / 117,768.40-176,422.20-80,443.60

Finding the Fourth Proportional to 117,768.40, 176,422.20 and 80,443.60

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Solution

The fourth proportional to 117,768.40, 176,422.20 and 80,443.60 is: 120,508.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,768.40 : 176,422.20 = 80,443.60 : x
  2. Step 2: Convert to fraction form
    117,768.40/176,422.20 = 80,443.60/x
  3. Step 3: Cross multiply
    117,768.40x = 176,422.20 × 80,443.60
  4. Step 4: Simplify right side
    117,768.40x = 14,192,036,887.92
  5. Step 5: Solve for x
    x = 14,192,036,887.92/117,768.40
  6. Step 6: Final answer
    x = 120,508.02

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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.