Home / 107,989.20-162,005.40-37,917.72

Finding the Fourth Proportional to 107,989.20, 162,005.40 and 37,917.72

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Solution

The fourth proportional to 107,989.20, 162,005.40 and 37,917.72 is: 56,884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,989.20 : 162,005.40 = 37,917.72 : x
  2. Step 2: Convert to fraction form
    107,989.20/162,005.40 = 37,917.72/x
  3. Step 3: Cross multiply
    107,989.20x = 162,005.40 × 37,917.72
  4. Step 4: Simplify right side
    107,989.20x = 6,142,875,395.69
  5. Step 5: Solve for x
    x = 6,142,875,395.69/107,989.20
  6. Step 6: Final answer
    x = 56,884.16

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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.