Home / 120,492.50-166,275.45-66,782.54

Finding the Fourth Proportional to 120,492.50, 166,275.45 and 66,782.54

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Solution

The fourth proportional to 120,492.50, 166,275.45 and 66,782.54 is: 92,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,492.50 : 166,275.45 = 66,782.54 : x
  2. Step 2: Convert to fraction form
    120,492.50/166,275.45 = 66,782.54/x
  3. Step 3: Cross multiply
    120,492.50x = 166,275.45 × 66,782.54
  4. Step 4: Simplify right side
    120,492.50x = 11,104,297,306.33
  5. Step 5: Solve for x
    x = 11,104,297,306.33/120,492.50
  6. Step 6: Final answer
    x = 92,157.58

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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.