Home / 107,686.38-161,529.93-52,243.50

Finding the Fourth Proportional to 107,686.38, 161,529.93 and 52,243.50

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Solution

The fourth proportional to 107,686.38, 161,529.93 and 52,243.50 is: 78,365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,686.38 : 161,529.93 = 52,243.50 : x
  2. Step 2: Convert to fraction form
    107,686.38/161,529.93 = 52,243.50/x
  3. Step 3: Cross multiply
    107,686.38x = 161,529.93 × 52,243.50
  4. Step 4: Simplify right side
    107,686.38x = 8,438,888,897.96
  5. Step 5: Solve for x
    x = 8,438,888,897.96/107,686.38
  6. Step 6: Final answer
    x = 78,365.42

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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.