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Finding the Fourth Proportional to 134,978.40, 202,467.60 and 108,734.40

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Solution

The fourth proportional to 134,978.40, 202,467.60 and 108,734.40 is: 163,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,978.40 : 202,467.60 = 108,734.40 : x
  2. Step 2: Convert to fraction form
    134,978.40/202,467.60 = 108,734.40/x
  3. Step 3: Cross multiply
    134,978.40x = 202,467.60 × 108,734.40
  4. Step 4: Simplify right side
    134,978.40x = 22,015,193,005.44
  5. Step 5: Solve for x
    x = 22,015,193,005.44/134,978.40
  6. Step 6: Final answer
    x = 163,101.60

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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.