Home / 102,743.83-154,128.20-36,170.34

Finding the Fourth Proportional to 102,743.83, 154,128.20 and 36,170.34

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Solution

The fourth proportional to 102,743.83, 154,128.20 and 36,170.34 is: 54,259.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,743.83 : 154,128.20 = 36,170.34 : x
  2. Step 2: Convert to fraction form
    102,743.83/154,128.20 = 36,170.34/x
  3. Step 3: Cross multiply
    102,743.83x = 154,128.20 × 36,170.34
  4. Step 4: Simplify right side
    102,743.83x = 5,574,868,626.95
  5. Step 5: Solve for x
    x = 5,574,868,626.95/102,743.83
  6. Step 6: Final answer
    x = 54,259.89

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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.