Home / 119,381.41-164,743.66-65,665.25

Finding the Fourth Proportional to 119,381.41, 164,743.66 and 65,665.25

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Solution

The fourth proportional to 119,381.41, 164,743.66 and 65,665.25 is: 90,616.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,381.41 : 164,743.66 = 65,665.25 : x
  2. Step 2: Convert to fraction form
    119,381.41/164,743.66 = 65,665.25/x
  3. Step 3: Cross multiply
    119,381.41x = 164,743.66 × 65,665.25
  4. Step 4: Simplify right side
    119,381.41x = 10,817,933,619.82
  5. Step 5: Solve for x
    x = 10,817,933,619.82/119,381.41
  6. Step 6: Final answer
    x = 90,616.57

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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.