Home / 100,973.28-139,343.68-58,556.96

Finding the Fourth Proportional to 100,973.28, 139,343.68 and 58,556.96

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Solution

The fourth proportional to 100,973.28, 139,343.68 and 58,556.96 is: 80,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,973.28 : 139,343.68 = 58,556.96 : x
  2. Step 2: Convert to fraction form
    100,973.28/139,343.68 = 58,556.96/x
  3. Step 3: Cross multiply
    100,973.28x = 139,343.68 × 58,556.96
  4. Step 4: Simplify right side
    100,973.28x = 8,159,542,296.01
  5. Step 5: Solve for x
    x = 8,159,542,296.01/100,973.28
  6. Step 6: Final answer
    x = 80,808.93

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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.