Home / 109,006.20-163,509.37-30,120.50

Finding the Fourth Proportional to 109,006.20, 163,509.37 and 30,120.50

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Solution

The fourth proportional to 109,006.20, 163,509.37 and 30,120.50 is: 45,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,006.20 : 163,509.37 = 30,120.50 : x
  2. Step 2: Convert to fraction form
    109,006.20/163,509.37 = 30,120.50/x
  3. Step 3: Cross multiply
    109,006.20x = 163,509.37 × 30,120.50
  4. Step 4: Simplify right side
    109,006.20x = 4,924,983,532.66
  5. Step 5: Solve for x
    x = 4,924,983,532.66/109,006.20
  6. Step 6: Final answer
    x = 45,180.77

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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.