Home / 107,865.80-161,741.10-45,465.80

Finding the Fourth Proportional to 107,865.80, 161,741.10 and 45,465.80

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Solution

The fourth proportional to 107,865.80, 161,741.10 and 45,465.80 is: 68,174.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,865.80 : 161,741.10 = 45,465.80 : x
  2. Step 2: Convert to fraction form
    107,865.80/161,741.10 = 45,465.80/x
  3. Step 3: Cross multiply
    107,865.80x = 161,741.10 × 45,465.80
  4. Step 4: Simplify right side
    107,865.80x = 7,353,688,504.38
  5. Step 5: Solve for x
    x = 7,353,688,504.38/107,865.80
  6. Step 6: Final answer
    x = 68,174.42

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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.