Home / 189,327.68-261,225.60-115,721.52

Finding the Fourth Proportional to 189,327.68, 261,225.60 and 115,721.52

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Solution

The fourth proportional to 189,327.68, 261,225.60 and 115,721.52 is: 159,667.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,327.68 : 261,225.60 = 115,721.52 : x
  2. Step 2: Convert to fraction form
    189,327.68/261,225.60 = 115,721.52/x
  3. Step 3: Cross multiply
    189,327.68x = 261,225.60 × 115,721.52
  4. Step 4: Simplify right side
    189,327.68x = 30,229,423,494.91
  5. Step 5: Solve for x
    x = 30,229,423,494.91/189,327.68
  6. Step 6: Final answer
    x = 159,667.22

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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.