Home / 189,289.33-261,218.76-108,722.05

Finding the Fourth Proportional to 189,289.33, 261,218.76 and 108,722.05

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Solution

The fourth proportional to 189,289.33, 261,218.76 and 108,722.05 is: 150,036.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,289.33 : 261,218.76 = 108,722.05 : x
  2. Step 2: Convert to fraction form
    189,289.33/261,218.76 = 108,722.05/x
  3. Step 3: Cross multiply
    189,289.33x = 261,218.76 × 108,722.05
  4. Step 4: Simplify right side
    189,289.33x = 28,400,239,085.66
  5. Step 5: Solve for x
    x = 28,400,239,085.66/189,289.33
  6. Step 6: Final answer
    x = 150,036.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.