Home / 129,723.60-194,257.35-103,479.60

Finding the Fourth Proportional to 129,723.60, 194,257.35 and 103,479.60

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Solution

The fourth proportional to 129,723.60, 194,257.35 and 103,479.60 is: 154,957.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,723.60 : 194,257.35 = 103,479.60 : x
  2. Step 2: Convert to fraction form
    129,723.60/194,257.35 = 103,479.60/x
  3. Step 3: Cross multiply
    129,723.60x = 194,257.35 × 103,479.60
  4. Step 4: Simplify right side
    129,723.60x = 20,101,672,875.06
  5. Step 5: Solve for x
    x = 20,101,672,875.06/129,723.60
  6. Step 6: Final answer
    x = 154,957.72

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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.