Home / 102,948.30-154,422.45-99,011.70

Finding the Fourth Proportional to 102,948.30, 154,422.45 and 99,011.70

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Solution

The fourth proportional to 102,948.30, 154,422.45 and 99,011.70 is: 148,517.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,948.30 : 154,422.45 = 99,011.70 : x
  2. Step 2: Convert to fraction form
    102,948.30/154,422.45 = 99,011.70/x
  3. Step 3: Cross multiply
    102,948.30x = 154,422.45 × 99,011.70
  4. Step 4: Simplify right side
    102,948.30x = 15,289,629,292.67
  5. Step 5: Solve for x
    x = 15,289,629,292.67/102,948.30
  6. Step 6: Final answer
    x = 148,517.55

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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.