Home / 109,747.40-164,628.30-30,864.20

Finding the Fourth Proportional to 109,747.40, 164,628.30 and 30,864.20

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Solution

The fourth proportional to 109,747.40, 164,628.30 and 30,864.20 is: 46,298.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,747.40 : 164,628.30 = 30,864.20 : x
  2. Step 2: Convert to fraction form
    109,747.40/164,628.30 = 30,864.20/x
  3. Step 3: Cross multiply
    109,747.40x = 164,628.30 × 30,864.20
  4. Step 4: Simplify right side
    109,747.40x = 5,081,120,776.86
  5. Step 5: Solve for x
    x = 5,081,120,776.86/109,747.40
  6. Step 6: Final answer
    x = 46,298.32

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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.