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Finding the Fourth Proportional to 130,512.40, 195,331.20 and 130,512.40

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Solution

The fourth proportional to 130,512.40, 195,331.20 and 130,512.40 is: 195,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,512.40 : 195,331.20 = 130,512.40 : x
  2. Step 2: Convert to fraction form
    130,512.40/195,331.20 = 130,512.40/x
  3. Step 3: Cross multiply
    130,512.40x = 195,331.20 × 130,512.40
  4. Step 4: Simplify right side
    130,512.40x = 25,493,143,706.88
  5. Step 5: Solve for x
    x = 25,493,143,706.88/130,512.40
  6. Step 6: Final answer
    x = 195,331.20

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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.