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Finding the Fourth Proportional to 130,565.60, 195,621.60 and 60,300.80

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Solution

The fourth proportional to 130,565.60, 195,621.60 and 60,300.80 is: 90,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,565.60 : 195,621.60 = 60,300.80 : x
  2. Step 2: Convert to fraction form
    130,565.60/195,621.60 = 60,300.80/x
  3. Step 3: Cross multiply
    130,565.60x = 195,621.60 × 60,300.80
  4. Step 4: Simplify right side
    130,565.60x = 11,796,138,977.28
  5. Step 5: Solve for x
    x = 11,796,138,977.28/130,565.60
  6. Step 6: Final answer
    x = 90,346.45

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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.