Home / 189,213.39-261,104.13-104,323.77

Finding the Fourth Proportional to 189,213.39, 261,104.13 and 104,323.77

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Solution

The fourth proportional to 189,213.39, 261,104.13 and 104,323.77 is: 143,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,213.39 : 261,104.13 = 104,323.77 : x
  2. Step 2: Convert to fraction form
    189,213.39/261,104.13 = 104,323.77/x
  3. Step 3: Cross multiply
    189,213.39x = 261,104.13 × 104,323.77
  4. Step 4: Simplify right side
    189,213.39x = 27,239,367,204.17
  5. Step 5: Solve for x
    x = 27,239,367,204.17/189,213.39
  6. Step 6: Final answer
    x = 143,961.10

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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.