Home / 109,615.68-151,341.12-67,197.60

Finding the Fourth Proportional to 109,615.68, 151,341.12 and 67,197.60

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Solution

The fourth proportional to 109,615.68, 151,341.12 and 67,197.60 is: 92,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,615.68 : 151,341.12 = 67,197.60 : x
  2. Step 2: Convert to fraction form
    109,615.68/151,341.12 = 67,197.60/x
  3. Step 3: Cross multiply
    109,615.68x = 151,341.12 × 67,197.60
  4. Step 4: Simplify right side
    109,615.68x = 10,169,760,045.31
  5. Step 5: Solve for x
    x = 10,169,760,045.31/109,615.68
  6. Step 6: Final answer
    x = 92,776.51

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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.