Home / 103,974.20-155,961.30-93,087.80

Finding the Fourth Proportional to 103,974.20, 155,961.30 and 93,087.80

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Solution

The fourth proportional to 103,974.20, 155,961.30 and 93,087.80 is: 139,631.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,974.20 : 155,961.30 = 93,087.80 : x
  2. Step 2: Convert to fraction form
    103,974.20/155,961.30 = 93,087.80/x
  3. Step 3: Cross multiply
    103,974.20x = 155,961.30 × 93,087.80
  4. Step 4: Simplify right side
    103,974.20x = 14,518,094,302.14
  5. Step 5: Solve for x
    x = 14,518,094,302.14/103,974.20
  6. Step 6: Final answer
    x = 139,631.70

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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.