Home / 110,541.90-165,715.65-66,186.30

Finding the Fourth Proportional to 110,541.90, 165,715.65 and 66,186.30

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Solution

The fourth proportional to 110,541.90, 165,715.65 and 66,186.30 is: 99,221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,541.90 : 165,715.65 = 66,186.30 : x
  2. Step 2: Convert to fraction form
    110,541.90/165,715.65 = 66,186.30/x
  3. Step 3: Cross multiply
    110,541.90x = 165,715.65 × 66,186.30
  4. Step 4: Simplify right side
    110,541.90x = 10,968,105,725.60
  5. Step 5: Solve for x
    x = 10,968,105,725.60/110,541.90
  6. Step 6: Final answer
    x = 99,221.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.