Home / 119,906.63-165,471.36-66,191.70

Finding the Fourth Proportional to 119,906.63, 165,471.36 and 66,191.70

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Solution

The fourth proportional to 119,906.63, 165,471.36 and 66,191.70 is: 91,344.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,906.63 : 165,471.36 = 66,191.70 : x
  2. Step 2: Convert to fraction form
    119,906.63/165,471.36 = 66,191.70/x
  3. Step 3: Cross multiply
    119,906.63x = 165,471.36 × 66,191.70
  4. Step 4: Simplify right side
    119,906.63x = 10,952,830,619.71
  5. Step 5: Solve for x
    x = 10,952,830,619.71/119,906.63
  6. Step 6: Final answer
    x = 91,344.67

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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.