Home / 154,512.34-213,248.63-111,630.61

Finding the Fourth Proportional to 154,512.34, 213,248.63 and 111,630.61

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Solution

The fourth proportional to 154,512.34, 213,248.63 and 111,630.61 is: 154,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,512.34 : 213,248.63 = 111,630.61 : x
  2. Step 2: Convert to fraction form
    154,512.34/213,248.63 = 111,630.61/x
  3. Step 3: Cross multiply
    154,512.34x = 213,248.63 × 111,630.61
  4. Step 4: Simplify right side
    154,512.34x = 23,805,074,648.56
  5. Step 5: Solve for x
    x = 23,805,074,648.56/154,512.34
  6. Step 6: Final answer
    x = 154,065.85

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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.