Home / 115,718.39-173,297.27-80,079.84

Finding the Fourth Proportional to 115,718.39, 173,297.27 and 80,079.84

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Solution

The fourth proportional to 115,718.39, 173,297.27 and 80,079.84 is: 119,925.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,718.39 : 173,297.27 = 80,079.84 : x
  2. Step 2: Convert to fraction form
    115,718.39/173,297.27 = 80,079.84/x
  3. Step 3: Cross multiply
    115,718.39x = 173,297.27 × 80,079.84
  4. Step 4: Simplify right side
    115,718.39x = 13,877,617,854.24
  5. Step 5: Solve for x
    x = 13,877,617,854.24/115,718.39
  6. Step 6: Final answer
    x = 119,925.78

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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.