Home / 120,530.83-166,340.52-66,818.11

Finding the Fourth Proportional to 120,530.83, 166,340.52 and 66,818.11

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Solution

The fourth proportional to 120,530.83, 166,340.52 and 66,818.11 is: 92,213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,530.83 : 166,340.52 = 66,818.11 : x
  2. Step 2: Convert to fraction form
    120,530.83/166,340.52 = 66,818.11/x
  3. Step 3: Cross multiply
    120,530.83x = 166,340.52 × 66,818.11
  4. Step 4: Simplify right side
    120,530.83x = 11,114,559,162.82
  5. Step 5: Solve for x
    x = 11,114,559,162.82/120,530.83
  6. Step 6: Final answer
    x = 92,213.41

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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.