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Finding the Fourth Proportional to 120,175.80, 180,166.48 and 73,412.88

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Solution

The fourth proportional to 120,175.80, 180,166.48 and 73,412.88 is: 110,059.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,175.80 : 180,166.48 = 73,412.88 : x
  2. Step 2: Convert to fraction form
    120,175.80/180,166.48 = 73,412.88/x
  3. Step 3: Cross multiply
    120,175.80x = 180,166.48 × 73,412.88
  4. Step 4: Simplify right side
    120,175.80x = 13,226,540,176.26
  5. Step 5: Solve for x
    x = 13,226,540,176.26/120,175.80
  6. Step 6: Final answer
    x = 110,059.93

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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.