Home / 112,065.75-154,652.97-61,078.28

Finding the Fourth Proportional to 112,065.75, 154,652.97 and 61,078.28

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Solution

The fourth proportional to 112,065.75, 154,652.97 and 61,078.28 is: 84,289.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,065.75 : 154,652.97 = 61,078.28 : x
  2. Step 2: Convert to fraction form
    112,065.75/154,652.97 = 61,078.28/x
  3. Step 3: Cross multiply
    112,065.75x = 154,652.97 × 61,078.28
  4. Step 4: Simplify right side
    112,065.75x = 9,445,936,631.23
  5. Step 5: Solve for x
    x = 9,445,936,631.23/112,065.75
  6. Step 6: Final answer
    x = 84,289.24

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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.