Home / 120,844.80-166,792.50-67,148.28

Finding the Fourth Proportional to 120,844.80, 166,792.50 and 67,148.28

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Solution

The fourth proportional to 120,844.80, 166,792.50 and 67,148.28 is: 92,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,844.80 : 166,792.50 = 67,148.28 : x
  2. Step 2: Convert to fraction form
    120,844.80/166,792.50 = 67,148.28/x
  3. Step 3: Cross multiply
    120,844.80x = 166,792.50 × 67,148.28
  4. Step 4: Simplify right side
    120,844.80x = 11,199,829,491.90
  5. Step 5: Solve for x
    x = 11,199,829,491.90/120,844.80
  6. Step 6: Final answer
    x = 92,679.45

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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.