Home / 107,790.50-161,678.23-40,309.70

Finding the Fourth Proportional to 107,790.50, 161,678.23 and 40,309.70

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Solution

The fourth proportional to 107,790.50, 161,678.23 and 40,309.70 is: 60,461.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,790.50 : 161,678.23 = 40,309.70 : x
  2. Step 2: Convert to fraction form
    107,790.50/161,678.23 = 40,309.70/x
  3. Step 3: Cross multiply
    107,790.50x = 161,678.23 × 40,309.70
  4. Step 4: Simplify right side
    107,790.50x = 6,517,200,038.67
  5. Step 5: Solve for x
    x = 6,517,200,038.67/107,790.50
  6. Step 6: Final answer
    x = 60,461.73

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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.