Home / 136,079.07-187,795.53-75,650.72

Finding the Fourth Proportional to 136,079.07, 187,795.53 and 75,650.72

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Solution

The fourth proportional to 136,079.07, 187,795.53 and 75,650.72 is: 104,401.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,079.07 : 187,795.53 = 75,650.72 : x
  2. Step 2: Convert to fraction form
    136,079.07/187,795.53 = 75,650.72/x
  3. Step 3: Cross multiply
    136,079.07x = 187,795.53 × 75,650.72
  4. Step 4: Simplify right side
    136,079.07x = 14,206,866,679.03
  5. Step 5: Solve for x
    x = 14,206,866,679.03/136,079.07
  6. Step 6: Final answer
    x = 104,401.56

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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.