Home / 102,750.50-154,156.83-72,822.62

Finding the Fourth Proportional to 102,750.50, 154,156.83 and 72,822.62

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Solution

The fourth proportional to 102,750.50, 154,156.83 and 72,822.62 is: 109,255.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,750.50 : 154,156.83 = 72,822.62 : x
  2. Step 2: Convert to fraction form
    102,750.50/154,156.83 = 72,822.62/x
  3. Step 3: Cross multiply
    102,750.50x = 154,156.83 × 72,822.62
  4. Step 4: Simplify right side
    102,750.50x = 11,226,104,251.49
  5. Step 5: Solve for x
    x = 11,226,104,251.49/102,750.50
  6. Step 6: Final answer
    x = 109,255.96

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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.