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Finding the Fourth Proportional to 79,422.40, 119,133.60 and 75,923.20

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Solution

The fourth proportional to 79,422.40, 119,133.60 and 75,923.20 is: 113,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,422.40 : 119,133.60 = 75,923.20 : x
  2. Step 2: Convert to fraction form
    79,422.40/119,133.60 = 75,923.20/x
  3. Step 3: Cross multiply
    79,422.40x = 119,133.60 × 75,923.20
  4. Step 4: Simplify right side
    79,422.40x = 9,045,004,139.52
  5. Step 5: Solve for x
    x = 9,045,004,139.52/79,422.40
  6. Step 6: Final answer
    x = 113,884.80

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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.