Home / 129,575.63-194,363.45-74,132.75

Finding the Fourth Proportional to 129,575.63, 194,363.45 and 74,132.75

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Solution

The fourth proportional to 129,575.63, 194,363.45 and 74,132.75 is: 111,199.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,575.63 : 194,363.45 = 74,132.75 : x
  2. Step 2: Convert to fraction form
    129,575.63/194,363.45 = 74,132.75/x
  3. Step 3: Cross multiply
    129,575.63x = 194,363.45 × 74,132.75
  4. Step 4: Simplify right side
    129,575.63x = 14,408,696,677.32
  5. Step 5: Solve for x
    x = 14,408,696,677.32/129,575.63
  6. Step 6: Final answer
    x = 111,199.13

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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.