Home / 103,454.45-154,276.35-102,508.56

Finding the Fourth Proportional to 103,454.45, 154,276.35 and 102,508.56

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Solution

The fourth proportional to 103,454.45, 154,276.35 and 102,508.56 is: 152,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,454.45 : 154,276.35 = 102,508.56 : x
  2. Step 2: Convert to fraction form
    103,454.45/154,276.35 = 102,508.56/x
  3. Step 3: Cross multiply
    103,454.45x = 154,276.35 × 102,508.56
  4. Step 4: Simplify right side
    103,454.45x = 15,814,646,480.56
  5. Step 5: Solve for x
    x = 15,814,646,480.56/103,454.45
  6. Step 6: Final answer
    x = 152,865.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.