Home / 199,354.78-275,116.23-108,715.70

Finding the Fourth Proportional to 199,354.78, 275,116.23 and 108,715.70

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Solution

The fourth proportional to 199,354.78, 275,116.23 and 108,715.70 is: 150,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,354.78 : 275,116.23 = 108,715.70 : x
  2. Step 2: Convert to fraction form
    199,354.78/275,116.23 = 108,715.70/x
  3. Step 3: Cross multiply
    199,354.78x = 275,116.23 × 108,715.70
  4. Step 4: Simplify right side
    199,354.78x = 29,909,453,525.81
  5. Step 5: Solve for x
    x = 29,909,453,525.81/199,354.78
  6. Step 6: Final answer
    x = 150,031.29

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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.