Home / 109,209.79-163,814.75-30,324.02

Finding the Fourth Proportional to 109,209.79, 163,814.75 and 30,324.02

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Solution

The fourth proportional to 109,209.79, 163,814.75 and 30,324.02 is: 45,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,209.79 : 163,814.75 = 30,324.02 : x
  2. Step 2: Convert to fraction form
    109,209.79/163,814.75 = 30,324.02/x
  3. Step 3: Cross multiply
    109,209.79x = 163,814.75 × 30,324.02
  4. Step 4: Simplify right side
    109,209.79x = 4,967,521,755.30
  5. Step 5: Solve for x
    x = 4,967,521,755.30/109,209.79
  6. Step 6: Final answer
    x = 45,486.05

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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.