Home / 186,740.70-280,147.05-80,123.10

Finding the Fourth Proportional to 186,740.70, 280,147.05 and 80,123.10

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Solution

The fourth proportional to 186,740.70, 280,147.05 and 80,123.10 is: 120,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,740.70 : 280,147.05 = 80,123.10 : x
  2. Step 2: Convert to fraction form
    186,740.70/280,147.05 = 80,123.10/x
  3. Step 3: Cross multiply
    186,740.70x = 280,147.05 × 80,123.10
  4. Step 4: Simplify right side
    186,740.70x = 22,446,250,101.86
  5. Step 5: Solve for x
    x = 22,446,250,101.86/186,740.70
  6. Step 6: Final answer
    x = 120,200.10

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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.