Home / 120,734.69-166,614.53-75,438.96

Finding the Fourth Proportional to 120,734.69, 166,614.53 and 75,438.96

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Solution

The fourth proportional to 120,734.69, 166,614.53 and 75,438.96 is: 104,106.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,734.69 : 166,614.53 = 75,438.96 : x
  2. Step 2: Convert to fraction form
    120,734.69/166,614.53 = 75,438.96/x
  3. Step 3: Cross multiply
    120,734.69x = 166,614.53 × 75,438.96
  4. Step 4: Simplify right side
    120,734.69x = 12,569,225,862.09
  5. Step 5: Solve for x
    x = 12,569,225,862.09/120,734.69
  6. Step 6: Final answer
    x = 104,106.17

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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.