Home / 120,582.85-166,414.31-66,885.22

Finding the Fourth Proportional to 120,582.85, 166,414.31 and 66,885.22

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Solution

The fourth proportional to 120,582.85, 166,414.31 and 66,885.22 is: 92,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,582.85 : 166,414.31 = 66,885.22 : x
  2. Step 2: Convert to fraction form
    120,582.85/166,414.31 = 66,885.22/x
  3. Step 3: Cross multiply
    120,582.85x = 166,414.31 × 66,885.22
  4. Step 4: Simplify right side
    120,582.85x = 11,130,657,735.50
  5. Step 5: Solve for x
    x = 11,130,657,735.50/120,582.85
  6. Step 6: Final answer
    x = 92,307.14

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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.