Home / 154,164.18-212,780.86-93,722

Finding the Fourth Proportional to 154,164.18, 212,780.86 and 93,722

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Solution

The fourth proportional to 154,164.18, 212,780.86 and 93,722 is: 129,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,164.18 : 212,780.86 = 93,722 : x
  2. Step 2: Convert to fraction form
    154,164.18/212,780.86 = 93,722/x
  3. Step 3: Cross multiply
    154,164.18x = 212,780.86 × 93,722
  4. Step 4: Simplify right side
    154,164.18x = 19,942,247,760.92
  5. Step 5: Solve for x
    x = 19,942,247,760.92/154,164.18
  6. Step 6: Final answer
    x = 129,357.21

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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.