Home / 189,710.72-261,837-125,066.48

Finding the Fourth Proportional to 189,710.72, 261,837 and 125,066.48

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Solution

The fourth proportional to 189,710.72, 261,837 and 125,066.48 is: 172,615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,710.72 : 261,837 = 125,066.48 : x
  2. Step 2: Convert to fraction form
    189,710.72/261,837 = 125,066.48/x
  3. Step 3: Cross multiply
    189,710.72x = 261,837 × 125,066.48
  4. Step 4: Simplify right side
    189,710.72x = 32,747,031,923.76
  5. Step 5: Solve for x
    x = 32,747,031,923.76/189,710.72
  6. Step 6: Final answer
    x = 172,615.61

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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.