Home / 154,146.24-231,230.70-65,389.68

Finding the Fourth Proportional to 154,146.24, 231,230.70 and 65,389.68

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Solution

The fourth proportional to 154,146.24, 231,230.70 and 65,389.68 is: 98,089.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,146.24 : 231,230.70 = 65,389.68 : x
  2. Step 2: Convert to fraction form
    154,146.24/231,230.70 = 65,389.68/x
  3. Step 3: Cross multiply
    154,146.24x = 231,230.70 × 65,389.68
  4. Step 4: Simplify right side
    154,146.24x = 15,120,101,479.18
  5. Step 5: Solve for x
    x = 15,120,101,479.18/154,146.24
  6. Step 6: Final answer
    x = 98,089.33

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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.