Home / 119,928.59-165,501.70-66,213.71

Finding the Fourth Proportional to 119,928.59, 165,501.70 and 66,213.71

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Solution

The fourth proportional to 119,928.59, 165,501.70 and 66,213.71 is: 91,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,928.59 : 165,501.70 = 66,213.71 : x
  2. Step 2: Convert to fraction form
    119,928.59/165,501.70 = 66,213.71/x
  3. Step 3: Cross multiply
    119,928.59x = 165,501.70 × 66,213.71
  4. Step 4: Simplify right side
    119,928.59x = 10,958,480,823.48
  5. Step 5: Solve for x
    x = 10,958,480,823.48/119,928.59
  6. Step 6: Final answer
    x = 91,375.05

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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.