Home / 117,567.80-162,242.43-66,579.20

Finding the Fourth Proportional to 117,567.80, 162,242.43 and 66,579.20

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Solution

The fourth proportional to 117,567.80, 162,242.43 and 66,579.20 is: 91,878.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,567.80 : 162,242.43 = 66,579.20 : x
  2. Step 2: Convert to fraction form
    117,567.80/162,242.43 = 66,579.20/x
  3. Step 3: Cross multiply
    117,567.80x = 162,242.43 × 66,579.20
  4. Step 4: Simplify right side
    117,567.80x = 10,801,971,195.46
  5. Step 5: Solve for x
    x = 10,801,971,195.46/117,567.80
  6. Step 6: Final answer
    x = 91,878.65

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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.