Home / 151,231.44-208,711.44-87,570.36

Finding the Fourth Proportional to 151,231.44, 208,711.44 and 87,570.36

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Solution

The fourth proportional to 151,231.44, 208,711.44 and 87,570.36 is: 120,854.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,231.44 : 208,711.44 = 87,570.36 : x
  2. Step 2: Convert to fraction form
    151,231.44/208,711.44 = 87,570.36/x
  3. Step 3: Cross multiply
    151,231.44x = 208,711.44 × 87,570.36
  4. Step 4: Simplify right side
    151,231.44x = 18,276,935,936.92
  5. Step 5: Solve for x
    x = 18,276,935,936.92/151,231.44
  6. Step 6: Final answer
    x = 120,854.08

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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.