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Finding the Fourth Proportional to 110,420.20, 165,630.30 and 60,653.80

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Solution

The fourth proportional to 110,420.20, 165,630.30 and 60,653.80 is: 90,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,420.20 : 165,630.30 = 60,653.80 : x
  2. Step 2: Convert to fraction form
    110,420.20/165,630.30 = 60,653.80/x
  3. Step 3: Cross multiply
    110,420.20x = 165,630.30 × 60,653.80
  4. Step 4: Simplify right side
    110,420.20x = 10,046,107,090.14
  5. Step 5: Solve for x
    x = 10,046,107,090.14/110,420.20
  6. Step 6: Final answer
    x = 90,980.70

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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.