Home / 136,749.33-188,701.29-79,373.43

Finding the Fourth Proportional to 136,749.33, 188,701.29 and 79,373.43

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Solution

The fourth proportional to 136,749.33, 188,701.29 and 79,373.43 is: 109,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,749.33 : 188,701.29 = 79,373.43 : x
  2. Step 2: Convert to fraction form
    136,749.33/188,701.29 = 79,373.43/x
  3. Step 3: Cross multiply
    136,749.33x = 188,701.29 × 79,373.43
  4. Step 4: Simplify right side
    136,749.33x = 14,977,868,632.72
  5. Step 5: Solve for x
    x = 14,977,868,632.72/136,749.33
  6. Step 6: Final answer
    x = 109,527.91

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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.