Home / 136,223.86-187,974.21-75,784.90

Finding the Fourth Proportional to 136,223.86, 187,974.21 and 75,784.90

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Solution

The fourth proportional to 136,223.86, 187,974.21 and 75,784.90 is: 104,574.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,223.86 : 187,974.21 = 75,784.90 : x
  2. Step 2: Convert to fraction form
    136,223.86/187,974.21 = 75,784.90/x
  3. Step 3: Cross multiply
    136,223.86x = 187,974.21 × 75,784.90
  4. Step 4: Simplify right side
    136,223.86x = 14,245,606,707.43
  5. Step 5: Solve for x
    x = 14,245,606,707.43/136,223.86
  6. Step 6: Final answer
    x = 104,574.97

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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.