Home / 119,799.90-165,321.81-66,090.06

Finding the Fourth Proportional to 119,799.90, 165,321.81 and 66,090.06

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Solution

The fourth proportional to 119,799.90, 165,321.81 and 66,090.06 is: 91,203.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,799.90 : 165,321.81 = 66,090.06 : x
  2. Step 2: Convert to fraction form
    119,799.90/165,321.81 = 66,090.06/x
  3. Step 3: Cross multiply
    119,799.90x = 165,321.81 × 66,090.06
  4. Step 4: Simplify right side
    119,799.90x = 10,926,128,342.21
  5. Step 5: Solve for x
    x = 10,926,128,342.21/119,799.90
  6. Step 6: Final answer
    x = 91,203.15

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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.