Home / 120,973.08-166,939.20-67,259.28

Finding the Fourth Proportional to 120,973.08, 166,939.20 and 67,259.28

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Solution

The fourth proportional to 120,973.08, 166,939.20 and 67,259.28 is: 92,815.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,973.08 : 166,939.20 = 67,259.28 : x
  2. Step 2: Convert to fraction form
    120,973.08/166,939.20 = 67,259.28/x
  3. Step 3: Cross multiply
    120,973.08x = 166,939.20 × 67,259.28
  4. Step 4: Simplify right side
    120,973.08x = 11,228,210,395.78
  5. Step 5: Solve for x
    x = 11,228,210,395.78/120,973.08
  6. Step 6: Final answer
    x = 92,815.78

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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.