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Finding the Fourth Proportional to 130,507.68, 195,735.60 and 63,919.20

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Solution

The fourth proportional to 130,507.68, 195,735.60 and 63,919.20 is: 95,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,507.68 : 195,735.60 = 63,919.20 : x
  2. Step 2: Convert to fraction form
    130,507.68/195,735.60 = 63,919.20/x
  3. Step 3: Cross multiply
    130,507.68x = 195,735.60 × 63,919.20
  4. Step 4: Simplify right side
    130,507.68x = 12,511,262,963.52
  5. Step 5: Solve for x
    x = 12,511,262,963.52/130,507.68
  6. Step 6: Final answer
    x = 95,866.11

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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.