Home / 111,029.30-166,543.95-100,531.70

Finding the Fourth Proportional to 111,029.30, 166,543.95 and 100,531.70

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Solution

The fourth proportional to 111,029.30, 166,543.95 and 100,531.70 is: 150,797.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,029.30 : 166,543.95 = 100,531.70 : x
  2. Step 2: Convert to fraction form
    111,029.30/166,543.95 = 100,531.70/x
  3. Step 3: Cross multiply
    111,029.30x = 166,543.95 × 100,531.70
  4. Step 4: Simplify right side
    111,029.30x = 16,742,946,418.22
  5. Step 5: Solve for x
    x = 16,742,946,418.22/111,029.30
  6. Step 6: Final answer
    x = 150,797.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.