Home / 136,615.38-188,581.16-102,722.28

Finding the Fourth Proportional to 136,615.38, 188,581.16 and 102,722.28

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Solution

The fourth proportional to 136,615.38, 188,581.16 and 102,722.28 is: 141,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,615.38 : 188,581.16 = 102,722.28 : x
  2. Step 2: Convert to fraction form
    136,615.38/188,581.16 = 102,722.28/x
  3. Step 3: Cross multiply
    136,615.38x = 188,581.16 × 102,722.28
  4. Step 4: Simplify right side
    136,615.38x = 19,371,486,720.24
  5. Step 5: Solve for x
    x = 19,371,486,720.24/136,615.38
  6. Step 6: Final answer
    x = 141,795.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.