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Finding the Fourth Proportional to 160,291.72, 240,873.77 and 85,464.73

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Solution

The fourth proportional to 160,291.72, 240,873.77 and 85,464.73 is: 128,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,291.72 : 240,873.77 = 85,464.73 : x
  2. Step 2: Convert to fraction form
    160,291.72/240,873.77 = 85,464.73/x
  3. Step 3: Cross multiply
    160,291.72x = 240,873.77 × 85,464.73
  4. Step 4: Simplify right side
    160,291.72x = 20,586,210,687.62
  5. Step 5: Solve for x
    x = 20,586,210,687.62/160,291.72
  6. Step 6: Final answer
    x = 128,429.66

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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.