Home / 111,630.87-154,052.28-60,644.61

Finding the Fourth Proportional to 111,630.87, 154,052.28 and 60,644.61

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Solution

The fourth proportional to 111,630.87, 154,052.28 and 60,644.61 is: 83,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,630.87 : 154,052.28 = 60,644.61 : x
  2. Step 2: Convert to fraction form
    111,630.87/154,052.28 = 60,644.61/x
  3. Step 3: Cross multiply
    111,630.87x = 154,052.28 × 60,644.61
  4. Step 4: Simplify right side
    111,630.87x = 9,342,440,440.21
  5. Step 5: Solve for x
    x = 9,342,440,440.21/111,630.87
  6. Step 6: Final answer
    x = 83,690.47

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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.