Home / 109,211.86-150,654.57-75,161.23

Finding the Fourth Proportional to 109,211.86, 150,654.57 and 75,161.23

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Solution

The fourth proportional to 109,211.86, 150,654.57 and 75,161.23 is: 103,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,211.86 : 150,654.57 = 75,161.23 : x
  2. Step 2: Convert to fraction form
    109,211.86/150,654.57 = 75,161.23/x
  3. Step 3: Cross multiply
    109,211.86x = 150,654.57 × 75,161.23
  4. Step 4: Simplify right side
    109,211.86x = 11,323,382,786.32
  5. Step 5: Solve for x
    x = 11,323,382,786.32/109,211.86
  6. Step 6: Final answer
    x = 103,682.72

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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.