Home / 115,320.72-159,138.96-67,605.84

Finding the Fourth Proportional to 115,320.72, 159,138.96 and 67,605.84

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Solution

The fourth proportional to 115,320.72, 159,138.96 and 67,605.84 is: 93,293.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,320.72 : 159,138.96 = 67,605.84 : x
  2. Step 2: Convert to fraction form
    115,320.72/159,138.96 = 67,605.84/x
  3. Step 3: Cross multiply
    115,320.72x = 159,138.96 × 67,605.84
  4. Step 4: Simplify right side
    115,320.72x = 10,758,723,067.53
  5. Step 5: Solve for x
    x = 10,758,723,067.53/115,320.72
  6. Step 6: Final answer
    x = 93,293.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.