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Finding the Fourth Proportional to 161,186.80, 241,722.60 and 72,482.80

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Solution

The fourth proportional to 161,186.80, 241,722.60 and 72,482.80 is: 108,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,186.80 : 241,722.60 = 72,482.80 : x
  2. Step 2: Convert to fraction form
    161,186.80/241,722.60 = 72,482.80/x
  3. Step 3: Cross multiply
    161,186.80x = 241,722.60 × 72,482.80
  4. Step 4: Simplify right side
    161,186.80x = 17,520,730,871.28
  5. Step 5: Solve for x
    x = 17,520,730,871.28/161,186.80
  6. Step 6: Final answer
    x = 108,698.30

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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.