Home / 189,265.07-261,191.63-108,708.75

Finding the Fourth Proportional to 189,265.07, 261,191.63 and 108,708.75

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Solution

The fourth proportional to 189,265.07, 261,191.63 and 108,708.75 is: 150,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,265.07 : 261,191.63 = 108,708.75 : x
  2. Step 2: Convert to fraction form
    189,265.07/261,191.63 = 108,708.75/x
  3. Step 3: Cross multiply
    189,265.07x = 261,191.63 × 108,708.75
  4. Step 4: Simplify right side
    189,265.07x = 28,393,815,607.76
  5. Step 5: Solve for x
    x = 28,393,815,607.76/189,265.07
  6. Step 6: Final answer
    x = 150,021.43

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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.