Home / 109,065.80-163,566.30-42,467.60

Finding the Fourth Proportional to 109,065.80, 163,566.30 and 42,467.60

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Solution

The fourth proportional to 109,065.80, 163,566.30 and 42,467.60 is: 63,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,065.80 : 163,566.30 = 42,467.60 : x
  2. Step 2: Convert to fraction form
    109,065.80/163,566.30 = 42,467.60/x
  3. Step 3: Cross multiply
    109,065.80x = 163,566.30 × 42,467.60
  4. Step 4: Simplify right side
    109,065.80x = 6,946,268,201.88
  5. Step 5: Solve for x
    x = 6,946,268,201.88/109,065.80
  6. Step 6: Final answer
    x = 63,688.78

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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.