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Finding the Fourth Proportional to 160,149.10, 240,022.05 and 81,285.10

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Solution

The fourth proportional to 160,149.10, 240,022.05 and 81,285.10 is: 121,825.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,149.10 : 240,022.05 = 81,285.10 : x
  2. Step 2: Convert to fraction form
    160,149.10/240,022.05 = 81,285.10/x
  3. Step 3: Cross multiply
    160,149.10x = 240,022.05 × 81,285.10
  4. Step 4: Simplify right side
    160,149.10x = 19,510,216,336.46
  5. Step 5: Solve for x
    x = 19,510,216,336.46/160,149.10
  6. Step 6: Final answer
    x = 121,825.33

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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.