Home / 120,835.30-166,752.63-67,125.32

Finding the Fourth Proportional to 120,835.30, 166,752.63 and 67,125.32

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Solution

The fourth proportional to 120,835.30, 166,752.63 and 67,125.32 is: 92,632.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,835.30 : 166,752.63 = 67,125.32 : x
  2. Step 2: Convert to fraction form
    120,835.30/166,752.63 = 67,125.32/x
  3. Step 3: Cross multiply
    120,835.30x = 166,752.63 × 67,125.32
  4. Step 4: Simplify right side
    120,835.30x = 11,193,323,649.59
  5. Step 5: Solve for x
    x = 11,193,323,649.59/120,835.30
  6. Step 6: Final answer
    x = 92,632.89

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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.