Home / 111,063.41-153,108.08-79,176.95

Finding the Fourth Proportional to 111,063.41, 153,108.08 and 79,176.95

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Solution

The fourth proportional to 111,063.41, 153,108.08 and 79,176.95 is: 109,150.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,063.41 : 153,108.08 = 79,176.95 : x
  2. Step 2: Convert to fraction form
    111,063.41/153,108.08 = 79,176.95/x
  3. Step 3: Cross multiply
    111,063.41x = 153,108.08 × 79,176.95
  4. Step 4: Simplify right side
    111,063.41x = 12,122,629,633.33
  5. Step 5: Solve for x
    x = 12,122,629,633.33/111,063.41
  6. Step 6: Final answer
    x = 109,150.53

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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.