Home / 129,386.60-194,014.30-59,205.78

Finding the Fourth Proportional to 129,386.60, 194,014.30 and 59,205.78

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Solution

The fourth proportional to 129,386.60, 194,014.30 and 59,205.78 is: 88,778.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,386.60 : 194,014.30 = 59,205.78 : x
  2. Step 2: Convert to fraction form
    129,386.60/194,014.30 = 59,205.78/x
  3. Step 3: Cross multiply
    129,386.60x = 194,014.30 × 59,205.78
  4. Step 4: Simplify right side
    129,386.60x = 11,486,767,962.65
  5. Step 5: Solve for x
    x = 11,486,767,962.65/129,386.60
  6. Step 6: Final answer
    x = 88,778.65

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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.