Home / 109,899.20-164,848.80-100,276.40

Finding the Fourth Proportional to 109,899.20, 164,848.80 and 100,276.40

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Solution

The fourth proportional to 109,899.20, 164,848.80 and 100,276.40 is: 150,414.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,899.20 : 164,848.80 = 100,276.40 : x
  2. Step 2: Convert to fraction form
    109,899.20/164,848.80 = 100,276.40/x
  3. Step 3: Cross multiply
    109,899.20x = 164,848.80 × 100,276.40
  4. Step 4: Simplify right side
    109,899.20x = 16,530,444,208.32
  5. Step 5: Solve for x
    x = 16,530,444,208.32/109,899.20
  6. Step 6: Final answer
    x = 150,414.60

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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.