Home / 119,861.40-165,412.08-66,150.57

Finding the Fourth Proportional to 119,861.40, 165,412.08 and 66,150.57

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Solution

The fourth proportional to 119,861.40, 165,412.08 and 66,150.57 is: 91,289.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,861.40 : 165,412.08 = 66,150.57 : x
  2. Step 2: Convert to fraction form
    119,861.40/165,412.08 = 66,150.57/x
  3. Step 3: Cross multiply
    119,861.40x = 165,412.08 × 66,150.57
  4. Step 4: Simplify right side
    119,861.40x = 10,942,103,376.89
  5. Step 5: Solve for x
    x = 10,942,103,376.89/119,861.40
  6. Step 6: Final answer
    x = 91,289.63

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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.