Home / 129,756.40-194,634.60-74,306.80

Finding the Fourth Proportional to 129,756.40, 194,634.60 and 74,306.80

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Solution

The fourth proportional to 129,756.40, 194,634.60 and 74,306.80 is: 111,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,756.40 : 194,634.60 = 74,306.80 : x
  2. Step 2: Convert to fraction form
    129,756.40/194,634.60 = 74,306.80/x
  3. Step 3: Cross multiply
    129,756.40x = 194,634.60 × 74,306.80
  4. Step 4: Simplify right side
    129,756.40x = 14,462,674,295.28
  5. Step 5: Solve for x
    x = 14,462,674,295.28/129,756.40
  6. Step 6: Final answer
    x = 111,460.20

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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.