Home / 97,692.20-146,538.30-90,693.80

Finding the Fourth Proportional to 97,692.20, 146,538.30 and 90,693.80

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Solution

The fourth proportional to 97,692.20, 146,538.30 and 90,693.80 is: 136,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,692.20 : 146,538.30 = 90,693.80 : x
  2. Step 2: Convert to fraction form
    97,692.20/146,538.30 = 90,693.80/x
  3. Step 3: Cross multiply
    97,692.20x = 146,538.30 × 90,693.80
  4. Step 4: Simplify right side
    97,692.20x = 13,290,115,272.54
  5. Step 5: Solve for x
    x = 13,290,115,272.54/97,692.20
  6. Step 6: Final answer
    x = 136,040.70

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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.