Home / 109,643.13-151,311.18-67,193.46

Finding the Fourth Proportional to 109,643.13, 151,311.18 and 67,193.46

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Solution

The fourth proportional to 109,643.13, 151,311.18 and 67,193.46 is: 92,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,643.13 : 151,311.18 = 67,193.46 : x
  2. Step 2: Convert to fraction form
    109,643.13/151,311.18 = 67,193.46/x
  3. Step 3: Cross multiply
    109,643.13x = 151,311.18 × 67,193.46
  4. Step 4: Simplify right side
    109,643.13x = 10,167,121,720.88
  5. Step 5: Solve for x
    x = 10,167,121,720.88/109,643.13
  6. Step 6: Final answer
    x = 92,729.22

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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.