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Finding the Fourth Proportional to 159,509.96, 239,067.90 and 80,646.68

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Solution

The fourth proportional to 159,509.96, 239,067.90 and 80,646.68 is: 120,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,509.96 : 239,067.90 = 80,646.68 : x
  2. Step 2: Convert to fraction form
    159,509.96/239,067.90 = 80,646.68/x
  3. Step 3: Cross multiply
    159,509.96x = 239,067.90 × 80,646.68
  4. Step 4: Simplify right side
    159,509.96x = 19,280,032,429.57
  5. Step 5: Solve for x
    x = 19,280,032,429.57/159,509.96
  6. Step 6: Final answer
    x = 120,870.40

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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.