Home / 102,815.60-154,223.40-27,947.30

Finding the Fourth Proportional to 102,815.60, 154,223.40 and 27,947.30

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Solution

The fourth proportional to 102,815.60, 154,223.40 and 27,947.30 is: 41,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,815.60 : 154,223.40 = 27,947.30 : x
  2. Step 2: Convert to fraction form
    102,815.60/154,223.40 = 27,947.30/x
  3. Step 3: Cross multiply
    102,815.60x = 154,223.40 × 27,947.30
  4. Step 4: Simplify right side
    102,815.60x = 4,310,127,626.82
  5. Step 5: Solve for x
    x = 4,310,127,626.82/102,815.60
  6. Step 6: Final answer
    x = 41,920.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.