Home / 109,165.28-163,747.91-30,279.51

Finding the Fourth Proportional to 109,165.28, 163,747.91 and 30,279.51

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Solution

The fourth proportional to 109,165.28, 163,747.91 and 30,279.51 is: 45,419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,165.28 : 163,747.91 = 30,279.51 : x
  2. Step 2: Convert to fraction form
    109,165.28/163,747.91 = 30,279.51/x
  3. Step 3: Cross multiply
    109,165.28x = 163,747.91 × 30,279.51
  4. Step 4: Simplify right side
    109,165.28x = 4,958,206,478.32
  5. Step 5: Solve for x
    x = 4,958,206,478.32/109,165.28
  6. Step 6: Final answer
    x = 45,419.26

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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.