Home / 120,659.22-166,400.73-75,341.34

Finding the Fourth Proportional to 120,659.22, 166,400.73 and 75,341.34

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Solution

The fourth proportional to 120,659.22, 166,400.73 and 75,341.34 is: 103,902.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,659.22 : 166,400.73 = 75,341.34 : x
  2. Step 2: Convert to fraction form
    120,659.22/166,400.73 = 75,341.34/x
  3. Step 3: Cross multiply
    120,659.22x = 166,400.73 × 75,341.34
  4. Step 4: Simplify right side
    120,659.22x = 12,536,853,975.18
  5. Step 5: Solve for x
    x = 12,536,853,975.18/120,659.22
  6. Step 6: Final answer
    x = 103,902.99

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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.