Home / 189,389.12-261,364.72-108,841.92

Finding the Fourth Proportional to 189,389.12, 261,364.72 and 108,841.92

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Solution

The fourth proportional to 189,389.12, 261,364.72 and 108,841.92 is: 150,206.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,389.12 : 261,364.72 = 108,841.92 : x
  2. Step 2: Convert to fraction form
    189,389.12/261,364.72 = 108,841.92/x
  3. Step 3: Cross multiply
    189,389.12x = 261,364.72 × 108,841.92
  4. Step 4: Simplify right side
    189,389.12x = 28,447,437,945.06
  5. Step 5: Solve for x
    x = 28,447,437,945.06/189,389.12
  6. Step 6: Final answer
    x = 150,206.29

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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.