Home / 109,749.40-164,631.30-30,866.20

Finding the Fourth Proportional to 109,749.40, 164,631.30 and 30,866.20

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Solution

The fourth proportional to 109,749.40, 164,631.30 and 30,866.20 is: 46,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,749.40 : 164,631.30 = 30,866.20 : x
  2. Step 2: Convert to fraction form
    109,749.40/164,631.30 = 30,866.20/x
  3. Step 3: Cross multiply
    109,749.40x = 164,631.30 × 30,866.20
  4. Step 4: Simplify right side
    109,749.40x = 5,081,542,632.06
  5. Step 5: Solve for x
    x = 5,081,542,632.06/109,749.40
  6. Step 6: Final answer
    x = 46,301.32

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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.