Home / 110,877.80-166,316.70-109,128.20

Finding the Fourth Proportional to 110,877.80, 166,316.70 and 109,128.20

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Solution

The fourth proportional to 110,877.80, 166,316.70 and 109,128.20 is: 163,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,877.80 : 166,316.70 = 109,128.20 : x
  2. Step 2: Convert to fraction form
    110,877.80/166,316.70 = 109,128.20/x
  3. Step 3: Cross multiply
    110,877.80x = 166,316.70 × 109,128.20
  4. Step 4: Simplify right side
    110,877.80x = 18,149,842,100.94
  5. Step 5: Solve for x
    x = 18,149,842,100.94/110,877.80
  6. Step 6: Final answer
    x = 163,692.30

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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.