Home / 120,980.76-166,901.22-75,579.72

Finding the Fourth Proportional to 120,980.76, 166,901.22 and 75,579.72

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Solution

The fourth proportional to 120,980.76, 166,901.22 and 75,579.72 is: 104,267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,980.76 : 166,901.22 = 75,579.72 : x
  2. Step 2: Convert to fraction form
    120,980.76/166,901.22 = 75,579.72/x
  3. Step 3: Cross multiply
    120,980.76x = 166,901.22 × 75,579.72
  4. Step 4: Simplify right side
    120,980.76x = 12,614,347,475.26
  5. Step 5: Solve for x
    x = 12,614,347,475.26/120,980.76
  6. Step 6: Final answer
    x = 104,267.38

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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.