Home / 120,617.48-166,343.18-75,299.66

Finding the Fourth Proportional to 120,617.48, 166,343.18 and 75,299.66

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Solution

The fourth proportional to 120,617.48, 166,343.18 and 75,299.66 is: 103,845.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,617.48 : 166,343.18 = 75,299.66 : x
  2. Step 2: Convert to fraction form
    120,617.48/166,343.18 = 75,299.66/x
  3. Step 3: Cross multiply
    120,617.48x = 166,343.18 × 75,299.66
  4. Step 4: Simplify right side
    120,617.48x = 12,525,584,897.32
  5. Step 5: Solve for x
    x = 12,525,584,897.32/120,617.48
  6. Step 6: Final answer
    x = 103,845.52

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1.5x scale

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.