Home / 120,663.58-166,515.77-66,948.47

Finding the Fourth Proportional to 120,663.58, 166,515.77 and 66,948.47

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Solution

The fourth proportional to 120,663.58, 166,515.77 and 66,948.47 is: 92,388.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,663.58 : 166,515.77 = 66,948.47 : x
  2. Step 2: Convert to fraction form
    120,663.58/166,515.77 = 66,948.47/x
  3. Step 3: Cross multiply
    120,663.58x = 166,515.77 × 66,948.47
  4. Step 4: Simplify right side
    120,663.58x = 11,147,975,697.63
  5. Step 5: Solve for x
    x = 11,147,975,697.63/120,663.58
  6. Step 6: Final answer
    x = 92,388.91

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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.