Home / 119,820.80-165,351.14-66,108.08

Finding the Fourth Proportional to 119,820.80, 165,351.14 and 66,108.08

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Solution

The fourth proportional to 119,820.80, 165,351.14 and 66,108.08 is: 91,228.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,820.80 : 165,351.14 = 66,108.08 : x
  2. Step 2: Convert to fraction form
    119,820.80/165,351.14 = 66,108.08/x
  3. Step 3: Cross multiply
    119,820.80x = 165,351.14 × 66,108.08
  4. Step 4: Simplify right side
    119,820.80x = 10,931,046,391.21
  5. Step 5: Solve for x
    x = 10,931,046,391.21/119,820.80
  6. Step 6: Final answer
    x = 91,228.29

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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.