Home / 136,435.96-188,281.92-79,086.34

Finding the Fourth Proportional to 136,435.96, 188,281.92 and 79,086.34

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Solution

The fourth proportional to 136,435.96, 188,281.92 and 79,086.34 is: 109,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,435.96 : 188,281.92 = 79,086.34 : x
  2. Step 2: Convert to fraction form
    136,435.96/188,281.92 = 79,086.34/x
  3. Step 3: Cross multiply
    136,435.96x = 188,281.92 × 79,086.34
  4. Step 4: Simplify right side
    136,435.96x = 14,890,527,940.97
  5. Step 5: Solve for x
    x = 14,890,527,940.97/136,435.96
  6. Step 6: Final answer
    x = 109,139.32

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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.