Home / 109,059.20-163,550.40-38,940.80

Finding the Fourth Proportional to 109,059.20, 163,550.40 and 38,940.80

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Solution

The fourth proportional to 109,059.20, 163,550.40 and 38,940.80 is: 58,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,059.20 : 163,550.40 = 38,940.80 : x
  2. Step 2: Convert to fraction form
    109,059.20/163,550.40 = 38,940.80/x
  3. Step 3: Cross multiply
    109,059.20x = 163,550.40 × 38,940.80
  4. Step 4: Simplify right side
    109,059.20x = 6,368,783,416.32
  5. Step 5: Solve for x
    x = 6,368,783,416.32/109,059.20
  6. Step 6: Final answer
    x = 58,397.49

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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.