Home / 130,655.72-195,920.20-76,635.15

Finding the Fourth Proportional to 130,655.72, 195,920.20 and 76,635.15

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Solution

The fourth proportional to 130,655.72, 195,920.20 and 76,635.15 is: 114,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,655.72 : 195,920.20 = 76,635.15 : x
  2. Step 2: Convert to fraction form
    130,655.72/195,920.20 = 76,635.15/x
  3. Step 3: Cross multiply
    130,655.72x = 195,920.20 × 76,635.15
  4. Step 4: Simplify right side
    130,655.72x = 15,014,373,915.03
  5. Step 5: Solve for x
    x = 15,014,373,915.03/130,655.72
  6. Step 6: Final answer
    x = 114,915.55

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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.