Home / 154,143.06-230,633.19-90,997.53

Finding the Fourth Proportional to 154,143.06, 230,633.19 and 90,997.53

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Solution

The fourth proportional to 154,143.06, 230,633.19 and 90,997.53 is: 136,153.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,143.06 : 230,633.19 = 90,997.53 : x
  2. Step 2: Convert to fraction form
    154,143.06/230,633.19 = 90,997.53/x
  3. Step 3: Cross multiply
    154,143.06x = 230,633.19 × 90,997.53
  4. Step 4: Simplify right side
    154,143.06x = 20,987,050,626.02
  5. Step 5: Solve for x
    x = 20,987,050,626.02/154,143.06
  6. Step 6: Final answer
    x = 136,153.07

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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.