Home / 154,414.67-231,661.94-90,426.86

Finding the Fourth Proportional to 154,414.67, 231,661.94 and 90,426.86

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Solution

The fourth proportional to 154,414.67, 231,661.94 and 90,426.86 is: 135,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,414.67 : 231,661.94 = 90,426.86 : x
  2. Step 2: Convert to fraction form
    154,414.67/231,661.94 = 90,426.86/x
  3. Step 3: Cross multiply
    154,414.67x = 231,661.94 × 90,426.86
  4. Step 4: Simplify right side
    154,414.67x = 20,948,461,815.71
  5. Step 5: Solve for x
    x = 20,948,461,815.71/154,414.67
  6. Step 6: Final answer
    x = 135,663.68

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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.