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Finding the Fourth Proportional to 134,868.60, 202,254.30 and 68,286.60

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Solution

The fourth proportional to 134,868.60, 202,254.30 and 68,286.60 is: 102,405.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,868.60 : 202,254.30 = 68,286.60 : x
  2. Step 2: Convert to fraction form
    134,868.60/202,254.30 = 68,286.60/x
  3. Step 3: Cross multiply
    134,868.60x = 202,254.30 × 68,286.60
  4. Step 4: Simplify right side
    134,868.60x = 13,811,258,482.38
  5. Step 5: Solve for x
    x = 13,811,258,482.38/134,868.60
  6. Step 6: Final answer
    x = 102,405.29

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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.