Home / 109,190.95-150,765.63-107,447.15

Finding the Fourth Proportional to 109,190.95, 150,765.63 and 107,447.15

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Solution

The fourth proportional to 109,190.95, 150,765.63 and 107,447.15 is: 148,357.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,190.95 : 150,765.63 = 107,447.15 : x
  2. Step 2: Convert to fraction form
    109,190.95/150,765.63 = 107,447.15/x
  3. Step 3: Cross multiply
    109,190.95x = 150,765.63 × 107,447.15
  4. Step 4: Simplify right side
    109,190.95x = 16,199,337,261.45
  5. Step 5: Solve for x
    x = 16,199,337,261.45/109,190.95
  6. Step 6: Final answer
    x = 148,357.87

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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.