Home / 119,972.64-165,570.14-66,258.54

Finding the Fourth Proportional to 119,972.64, 165,570.14 and 66,258.54

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Solution

The fourth proportional to 119,972.64, 165,570.14 and 66,258.54 is: 91,441.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,972.64 : 165,570.14 = 66,258.54 : x
  2. Step 2: Convert to fraction form
    119,972.64/165,570.14 = 66,258.54/x
  3. Step 3: Cross multiply
    119,972.64x = 165,570.14 × 66,258.54
  4. Step 4: Simplify right side
    119,972.64x = 10,970,435,909.64
  5. Step 5: Solve for x
    x = 10,970,435,909.64/119,972.64
  6. Step 6: Final answer
    x = 91,441.14

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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.