Home / 109,074.20-163,512.88-75,809.93

Finding the Fourth Proportional to 109,074.20, 163,512.88 and 75,809.93

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Solution

The fourth proportional to 109,074.20, 163,512.88 and 75,809.93 is: 113,646.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,074.20 : 163,512.88 = 75,809.93 : x
  2. Step 2: Convert to fraction form
    109,074.20/163,512.88 = 75,809.93/x
  3. Step 3: Cross multiply
    109,074.20x = 163,512.88 × 75,809.93
  4. Step 4: Simplify right side
    109,074.20x = 12,395,898,979.81
  5. Step 5: Solve for x
    x = 12,395,898,979.81/109,074.20
  6. Step 6: Final answer
    x = 113,646.49

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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.