Home / 102,680.90-154,076.49-42,750.75

Finding the Fourth Proportional to 102,680.90, 154,076.49 and 42,750.75

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Solution

The fourth proportional to 102,680.90, 154,076.49 and 42,750.75 is: 64,149.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,680.90 : 154,076.49 = 42,750.75 : x
  2. Step 2: Convert to fraction form
    102,680.90/154,076.49 = 42,750.75/x
  3. Step 3: Cross multiply
    102,680.90x = 154,076.49 × 42,750.75
  4. Step 4: Simplify right side
    102,680.90x = 6,586,885,504.87
  5. Step 5: Solve for x
    x = 6,586,885,504.87/102,680.90
  6. Step 6: Final answer
    x = 64,149.08

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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.