Home / 120,666.08-166,524.80-75,370.88

Finding the Fourth Proportional to 120,666.08, 166,524.80 and 75,370.88

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Solution

The fourth proportional to 120,666.08, 166,524.80 and 75,370.88 is: 104,015.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,666.08 : 166,524.80 = 75,370.88 : x
  2. Step 2: Convert to fraction form
    120,666.08/166,524.80 = 75,370.88/x
  3. Step 3: Cross multiply
    120,666.08x = 166,524.80 × 75,370.88
  4. Step 4: Simplify right side
    120,666.08x = 12,551,120,717.82
  5. Step 5: Solve for x
    x = 12,551,120,717.82/120,666.08
  6. Step 6: Final answer
    x = 104,015.32

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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.