Home / 129,478.32-194,170.50-45,214.83

Finding the Fourth Proportional to 129,478.32, 194,170.50 and 45,214.83

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Solution

The fourth proportional to 129,478.32, 194,170.50 and 45,214.83 is: 67,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,478.32 : 194,170.50 = 45,214.83 : x
  2. Step 2: Convert to fraction form
    129,478.32/194,170.50 = 45,214.83/x
  3. Step 3: Cross multiply
    129,478.32x = 194,170.50 × 45,214.83
  4. Step 4: Simplify right side
    129,478.32x = 8,779,386,148.52
  5. Step 5: Solve for x
    x = 8,779,386,148.52/129,478.32
  6. Step 6: Final answer
    x = 67,805.84

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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.