Home / 112,065.38-154,648.20-61,078.58

Finding the Fourth Proportional to 112,065.38, 154,648.20 and 61,078.58

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Solution

The fourth proportional to 112,065.38, 154,648.20 and 61,078.58 is: 84,287.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,065.38 : 154,648.20 = 61,078.58 : x
  2. Step 2: Convert to fraction form
    112,065.38/154,648.20 = 61,078.58/x
  3. Step 3: Cross multiply
    112,065.38x = 154,648.20 × 61,078.58
  4. Step 4: Simplify right side
    112,065.38x = 9,445,692,455.56
  5. Step 5: Solve for x
    x = 9,445,692,455.56/112,065.38
  6. Step 6: Final answer
    x = 84,287.34

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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.