Home / 109,744.80-164,617.20-43,187.10

Finding the Fourth Proportional to 109,744.80, 164,617.20 and 43,187.10

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Solution

The fourth proportional to 109,744.80, 164,617.20 and 43,187.10 is: 64,780.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,744.80 : 164,617.20 = 43,187.10 : x
  2. Step 2: Convert to fraction form
    109,744.80/164,617.20 = 43,187.10/x
  3. Step 3: Cross multiply
    109,744.80x = 164,617.20 × 43,187.10
  4. Step 4: Simplify right side
    109,744.80x = 7,109,339,478.12
  5. Step 5: Solve for x
    x = 7,109,339,478.12/109,744.80
  6. Step 6: Final answer
    x = 64,780.65

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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.