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Finding the Fourth Proportional to 110,008.40, 165,012.60 and 65,612.30

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Solution

The fourth proportional to 110,008.40, 165,012.60 and 65,612.30 is: 98,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,008.40 : 165,012.60 = 65,612.30 : x
  2. Step 2: Convert to fraction form
    110,008.40/165,012.60 = 65,612.30/x
  3. Step 3: Cross multiply
    110,008.40x = 165,012.60 × 65,612.30
  4. Step 4: Simplify right side
    110,008.40x = 10,826,856,214.98
  5. Step 5: Solve for x
    x = 10,826,856,214.98/110,008.40
  6. Step 6: Final answer
    x = 98,418.45

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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.