Home / 109,152.20-163,632.30-73,977.80

Finding the Fourth Proportional to 109,152.20, 163,632.30 and 73,977.80

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Solution

The fourth proportional to 109,152.20, 163,632.30 and 73,977.80 is: 110,901.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,152.20 : 163,632.30 = 73,977.80 : x
  2. Step 2: Convert to fraction form
    109,152.20/163,632.30 = 73,977.80/x
  3. Step 3: Cross multiply
    109,152.20x = 163,632.30 × 73,977.80
  4. Step 4: Simplify right side
    109,152.20x = 12,105,157,562.94
  5. Step 5: Solve for x
    x = 12,105,157,562.94/109,152.20
  6. Step 6: Final answer
    x = 110,901.64

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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.