Home / 109,124.20-163,532.70-80,823.40

Finding the Fourth Proportional to 109,124.20, 163,532.70 and 80,823.40

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Solution

The fourth proportional to 109,124.20, 163,532.70 and 80,823.40 is: 121,121.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,124.20 : 163,532.70 = 80,823.40 : x
  2. Step 2: Convert to fraction form
    109,124.20/163,532.70 = 80,823.40/x
  3. Step 3: Cross multiply
    109,124.20x = 163,532.70 × 80,823.40
  4. Step 4: Simplify right side
    109,124.20x = 13,217,268,825.18
  5. Step 5: Solve for x
    x = 13,217,268,825.18/109,124.20
  6. Step 6: Final answer
    x = 121,121.34

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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.