Home / 199,365.21-275,123.18-108,720.95

Finding the Fourth Proportional to 199,365.21, 275,123.18 and 108,720.95

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Solution

The fourth proportional to 199,365.21, 275,123.18 and 108,720.95 is: 150,034.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,365.21 : 275,123.18 = 108,720.95 : x
  2. Step 2: Convert to fraction form
    199,365.21/275,123.18 = 108,720.95/x
  3. Step 3: Cross multiply
    199,365.21x = 275,123.18 × 108,720.95
  4. Step 4: Simplify right side
    199,365.21x = 29,911,652,392.81
  5. Step 5: Solve for x
    x = 29,911,652,392.81/199,365.21
  6. Step 6: Final answer
    x = 150,034.46

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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.