Home / 79,738.20-119,607.30-66,616.20

Finding the Fourth Proportional to 79,738.20, 119,607.30 and 66,616.20

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Solution

The fourth proportional to 79,738.20, 119,607.30 and 66,616.20 is: 99,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,738.20 : 119,607.30 = 66,616.20 : x
  2. Step 2: Convert to fraction form
    79,738.20/119,607.30 = 66,616.20/x
  3. Step 3: Cross multiply
    79,738.20x = 119,607.30 × 66,616.20
  4. Step 4: Simplify right side
    79,738.20x = 7,967,783,818.26
  5. Step 5: Solve for x
    x = 7,967,783,818.26/79,738.20
  6. Step 6: Final answer
    x = 99,924.30

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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.