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Finding the Fourth Proportional to 110,116.20, 165,174.30 and 65,720.10

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Solution

The fourth proportional to 110,116.20, 165,174.30 and 65,720.10 is: 98,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,116.20 : 165,174.30 = 65,720.10 : x
  2. Step 2: Convert to fraction form
    110,116.20/165,174.30 = 65,720.10/x
  3. Step 3: Cross multiply
    110,116.20x = 165,174.30 × 65,720.10
  4. Step 4: Simplify right side
    110,116.20x = 10,855,271,513.43
  5. Step 5: Solve for x
    x = 10,855,271,513.43/110,116.20
  6. Step 6: Final answer
    x = 98,580.15

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1.5x scale

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.