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Finding the Fourth Proportional to 109,301.40, 150,854.40 and 66,873.60

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Solution

The fourth proportional to 109,301.40, 150,854.40 and 66,873.60 is: 92,296.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,301.40 : 150,854.40 = 66,873.60 : x
  2. Step 2: Convert to fraction form
    109,301.40/150,854.40 = 66,873.60/x
  3. Step 3: Cross multiply
    109,301.40x = 150,854.40 × 66,873.60
  4. Step 4: Simplify right side
    109,301.40x = 10,088,176,803.84
  5. Step 5: Solve for x
    x = 10,088,176,803.84/109,301.40
  6. Step 6: Final answer
    x = 92,296.87

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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.