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Finding the Fourth Proportional to 103,206.20, 154,809.30 and 61,734.20

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Solution

The fourth proportional to 103,206.20, 154,809.30 and 61,734.20 is: 92,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,206.20 : 154,809.30 = 61,734.20 : x
  2. Step 2: Convert to fraction form
    103,206.20/154,809.30 = 61,734.20/x
  3. Step 3: Cross multiply
    103,206.20x = 154,809.30 × 61,734.20
  4. Step 4: Simplify right side
    103,206.20x = 9,557,028,288.06
  5. Step 5: Solve for x
    x = 9,557,028,288.06/103,206.20
  6. Step 6: Final answer
    x = 92,601.30

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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.