Home / 109,272.20-163,908.30-108,235.40

Finding the Fourth Proportional to 109,272.20, 163,908.30 and 108,235.40

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Solution

The fourth proportional to 109,272.20, 163,908.30 and 108,235.40 is: 162,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,272.20 : 163,908.30 = 108,235.40 : x
  2. Step 2: Convert to fraction form
    109,272.20/163,908.30 = 108,235.40/x
  3. Step 3: Cross multiply
    109,272.20x = 163,908.30 × 108,235.40
  4. Step 4: Simplify right side
    109,272.20x = 17,740,680,413.82
  5. Step 5: Solve for x
    x = 17,740,680,413.82/109,272.20
  6. Step 6: Final answer
    x = 162,353.10

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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.