Home / 120,627.13-166,459.56-66,907.39

Finding the Fourth Proportional to 120,627.13, 166,459.56 and 66,907.39

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Solution

The fourth proportional to 120,627.13, 166,459.56 and 66,907.39 is: 92,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,627.13 : 166,459.56 = 66,907.39 : x
  2. Step 2: Convert to fraction form
    120,627.13/166,459.56 = 66,907.39/x
  3. Step 3: Cross multiply
    120,627.13x = 166,459.56 × 66,907.39
  4. Step 4: Simplify right side
    120,627.13x = 11,137,374,700.15
  5. Step 5: Solve for x
    x = 11,137,374,700.15/120,627.13
  6. Step 6: Final answer
    x = 92,328.94

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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.