Home / 109,399.40-164,099.10-92,486.60

Finding the Fourth Proportional to 109,399.40, 164,099.10 and 92,486.60

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Solution

The fourth proportional to 109,399.40, 164,099.10 and 92,486.60 is: 138,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,399.40 : 164,099.10 = 92,486.60 : x
  2. Step 2: Convert to fraction form
    109,399.40/164,099.10 = 92,486.60/x
  3. Step 3: Cross multiply
    109,399.40x = 164,099.10 × 92,486.60
  4. Step 4: Simplify right side
    109,399.40x = 15,176,967,822.06
  5. Step 5: Solve for x
    x = 15,176,967,822.06/109,399.40
  6. Step 6: Final answer
    x = 138,729.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.