Home / 199,642.58-275,508.17-109,000.34

Finding the Fourth Proportional to 199,642.58, 275,508.17 and 109,000.34

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Solution

The fourth proportional to 199,642.58, 275,508.17 and 109,000.34 is: 150,421.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,642.58 : 275,508.17 = 109,000.34 : x
  2. Step 2: Convert to fraction form
    199,642.58/275,508.17 = 109,000.34/x
  3. Step 3: Cross multiply
    199,642.58x = 275,508.17 × 109,000.34
  4. Step 4: Simplify right side
    199,642.58x = 30,030,482,280.24
  5. Step 5: Solve for x
    x = 30,030,482,280.24/199,642.58
  6. Step 6: Final answer
    x = 150,421.23

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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.