Home / 105,412.30-157,790.40-60,906.85

Finding the Fourth Proportional to 105,412.30, 157,790.40 and 60,906.85

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Solution

The fourth proportional to 105,412.30, 157,790.40 and 60,906.85 is: 91,170.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,412.30 : 157,790.40 = 60,906.85 : x
  2. Step 2: Convert to fraction form
    105,412.30/157,790.40 = 60,906.85/x
  3. Step 3: Cross multiply
    105,412.30x = 157,790.40 × 60,906.85
  4. Step 4: Simplify right side
    105,412.30x = 9,610,516,224.24
  5. Step 5: Solve for x
    x = 9,610,516,224.24/105,412.30
  6. Step 6: Final answer
    x = 91,170.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.