Home / 120,767.08-166,624.80-75,491.12

Finding the Fourth Proportional to 120,767.08, 166,624.80 and 75,491.12

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Solution

The fourth proportional to 120,767.08, 166,624.80 and 75,491.12 is: 104,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,767.08 : 166,624.80 = 75,491.12 : x
  2. Step 2: Convert to fraction form
    120,767.08/166,624.80 = 75,491.12/x
  3. Step 3: Cross multiply
    120,767.08x = 166,624.80 × 75,491.12
  4. Step 4: Simplify right side
    120,767.08x = 12,578,692,771.78
  5. Step 5: Solve for x
    x = 12,578,692,771.78/120,767.08
  6. Step 6: Final answer
    x = 104,156.64

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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.