Home / 109,632.80-164,449.20-103,181.60

Finding the Fourth Proportional to 109,632.80, 164,449.20 and 103,181.60

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Solution

The fourth proportional to 109,632.80, 164,449.20 and 103,181.60 is: 154,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,632.80 : 164,449.20 = 103,181.60 : x
  2. Step 2: Convert to fraction form
    109,632.80/164,449.20 = 103,181.60/x
  3. Step 3: Cross multiply
    109,632.80x = 164,449.20 × 103,181.60
  4. Step 4: Simplify right side
    109,632.80x = 16,968,131,574.72
  5. Step 5: Solve for x
    x = 16,968,131,574.72/109,632.80
  6. Step 6: Final answer
    x = 154,772.40

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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.