Home / 119,865.90-165,418.29-66,155.07

Finding the Fourth Proportional to 119,865.90, 165,418.29 and 66,155.07

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Solution

The fourth proportional to 119,865.90, 165,418.29 and 66,155.07 is: 91,295.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,865.90 : 165,418.29 = 66,155.07 : x
  2. Step 2: Convert to fraction form
    119,865.90/165,418.29 = 66,155.07/x
  3. Step 3: Cross multiply
    119,865.90x = 165,418.29 × 66,155.07
  4. Step 4: Simplify right side
    119,865.90x = 10,943,258,554.23
  5. Step 5: Solve for x
    x = 10,943,258,554.23/119,865.90
  6. Step 6: Final answer
    x = 91,295.84

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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.