Home / 103,034.20-154,551.30-79,677.40

Finding the Fourth Proportional to 103,034.20, 154,551.30 and 79,677.40

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Solution

The fourth proportional to 103,034.20, 154,551.30 and 79,677.40 is: 119,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,034.20 : 154,551.30 = 79,677.40 : x
  2. Step 2: Convert to fraction form
    103,034.20/154,551.30 = 79,677.40/x
  3. Step 3: Cross multiply
    103,034.20x = 154,551.30 × 79,677.40
  4. Step 4: Simplify right side
    103,034.20x = 12,314,245,750.62
  5. Step 5: Solve for x
    x = 12,314,245,750.62/103,034.20
  6. Step 6: Final answer
    x = 119,516.10

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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.