Home / 117,958.68-162,898.65-100,864.22

Finding the Fourth Proportional to 117,958.68, 162,898.65 and 100,864.22

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Solution

The fourth proportional to 117,958.68, 162,898.65 and 100,864.22 is: 139,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,958.68 : 162,898.65 = 100,864.22 : x
  2. Step 2: Convert to fraction form
    117,958.68/162,898.65 = 100,864.22/x
  3. Step 3: Cross multiply
    117,958.68x = 162,898.65 × 100,864.22
  4. Step 4: Simplify right side
    117,958.68x = 16,430,644,456.81
  5. Step 5: Solve for x
    x = 16,430,644,456.81/117,958.68
  6. Step 6: Final answer
    x = 139,291.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.