Home / 151,197.66-208,661.36-86,677.56

Finding the Fourth Proportional to 151,197.66, 208,661.36 and 86,677.56

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Solution

The fourth proportional to 151,197.66, 208,661.36 and 86,677.56 is: 119,619.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,197.66 : 208,661.36 = 86,677.56 : x
  2. Step 2: Convert to fraction form
    151,197.66/208,661.36 = 86,677.56/x
  3. Step 3: Cross multiply
    151,197.66x = 208,661.36 × 86,677.56
  4. Step 4: Simplify right side
    151,197.66x = 18,086,257,117.69
  5. Step 5: Solve for x
    x = 18,086,257,117.69/151,197.66
  6. Step 6: Final answer
    x = 119,619.95

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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.