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Finding the Fourth Proportional to 160,149.60, 240,022.80 and 81,285.60

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Solution

The fourth proportional to 160,149.60, 240,022.80 and 81,285.60 is: 121,826.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,149.60 : 240,022.80 = 81,285.60 : x
  2. Step 2: Convert to fraction form
    160,149.60/240,022.80 = 81,285.60/x
  3. Step 3: Cross multiply
    160,149.60x = 240,022.80 × 81,285.60
  4. Step 4: Simplify right side
    160,149.60x = 19,510,397,311.68
  5. Step 5: Solve for x
    x = 19,510,397,311.68/160,149.60
  6. Step 6: Final answer
    x = 121,826.08

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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.