Home / 109,324.20-163,986.30-74,332.20

Finding the Fourth Proportional to 109,324.20, 163,986.30 and 74,332.20

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Solution

The fourth proportional to 109,324.20, 163,986.30 and 74,332.20 is: 111,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,324.20 : 163,986.30 = 74,332.20 : x
  2. Step 2: Convert to fraction form
    109,324.20/163,986.30 = 74,332.20/x
  3. Step 3: Cross multiply
    109,324.20x = 163,986.30 × 74,332.20
  4. Step 4: Simplify right side
    109,324.20x = 12,189,462,448.86
  5. Step 5: Solve for x
    x = 12,189,462,448.86/109,324.20
  6. Step 6: Final answer
    x = 111,498.30

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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.