Home / 119,854.39-165,399.54-66,140.96

Finding the Fourth Proportional to 119,854.39, 165,399.54 and 66,140.96

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Solution

The fourth proportional to 119,854.39, 165,399.54 and 66,140.96 is: 91,274.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,854.39 : 165,399.54 = 66,140.96 : x
  2. Step 2: Convert to fraction form
    119,854.39/165,399.54 = 66,140.96/x
  3. Step 3: Cross multiply
    119,854.39x = 165,399.54 × 66,140.96
  4. Step 4: Simplify right side
    119,854.39x = 10,939,683,532.16
  5. Step 5: Solve for x
    x = 10,939,683,532.16/119,854.39
  6. Step 6: Final answer
    x = 91,274.79

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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.