Home / 151,446.96-208,997.61-86,911.06

Finding the Fourth Proportional to 151,446.96, 208,997.61 and 86,911.06

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Solution

The fourth proportional to 151,446.96, 208,997.61 and 86,911.06 is: 119,937.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,446.96 : 208,997.61 = 86,911.06 : x
  2. Step 2: Convert to fraction form
    151,446.96/208,997.61 = 86,911.06/x
  3. Step 3: Cross multiply
    151,446.96x = 208,997.61 × 86,911.06
  4. Step 4: Simplify right side
    151,446.96x = 18,164,203,822.57
  5. Step 5: Solve for x
    x = 18,164,203,822.57/151,446.96
  6. Step 6: Final answer
    x = 119,937.72

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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.