Home / 120,907.48-166,849-67,191.12

Finding the Fourth Proportional to 120,907.48, 166,849 and 67,191.12

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Solution

The fourth proportional to 120,907.48, 166,849 and 67,191.12 is: 92,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,907.48 : 166,849 = 67,191.12 : x
  2. Step 2: Convert to fraction form
    120,907.48/166,849 = 67,191.12/x
  3. Step 3: Cross multiply
    120,907.48x = 166,849 × 67,191.12
  4. Step 4: Simplify right side
    120,907.48x = 11,210,771,180.88
  5. Step 5: Solve for x
    x = 11,210,771,180.88/120,907.48
  6. Step 6: Final answer
    x = 92,721.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.