Home / 136,429.34-188,278.15-75,999.96

Finding the Fourth Proportional to 136,429.34, 188,278.15 and 75,999.96

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Solution

The fourth proportional to 136,429.34, 188,278.15 and 75,999.96 is: 104,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,429.34 : 188,278.15 = 75,999.96 : x
  2. Step 2: Convert to fraction form
    136,429.34/188,278.15 = 75,999.96/x
  3. Step 3: Cross multiply
    136,429.34x = 188,278.15 × 75,999.96
  4. Step 4: Simplify right side
    136,429.34x = 14,309,131,868.87
  5. Step 5: Solve for x
    x = 14,309,131,868.87/136,429.34
  6. Step 6: Final answer
    x = 104,883.10

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1.5x scale

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.