Home / 110,900.10-166,058.55-81,156.90

Finding the Fourth Proportional to 110,900.10, 166,058.55 and 81,156.90

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Solution

The fourth proportional to 110,900.10, 166,058.55 and 81,156.90 is: 121,521.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,900.10 : 166,058.55 = 81,156.90 : x
  2. Step 2: Convert to fraction form
    110,900.10/166,058.55 = 81,156.90/x
  3. Step 3: Cross multiply
    110,900.10x = 166,058.55 × 81,156.90
  4. Step 4: Simplify right side
    110,900.10x = 13,476,797,136.50
  5. Step 5: Solve for x
    x = 13,476,797,136.50/110,900.10
  6. Step 6: Final answer
    x = 121,521.96

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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.