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Finding the Fourth Proportional to 110,002.20, 165,068.10 and 72,670.20

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Solution

The fourth proportional to 110,002.20, 165,068.10 and 72,670.20 is: 109,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,002.20 : 165,068.10 = 72,670.20 : x
  2. Step 2: Convert to fraction form
    110,002.20/165,068.10 = 72,670.20/x
  3. Step 3: Cross multiply
    110,002.20x = 165,068.10 × 72,670.20
  4. Step 4: Simplify right side
    110,002.20x = 11,995,531,840.62
  5. Step 5: Solve for x
    x = 11,995,531,840.62/110,002.20
  6. Step 6: Final answer
    x = 109,048.11

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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.