Home / 100,324.81-138,400.53-60,030.46

Finding the Fourth Proportional to 100,324.81, 138,400.53 and 60,030.46

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Solution

The fourth proportional to 100,324.81, 138,400.53 and 60,030.46 is: 82,813.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,324.81 : 138,400.53 = 60,030.46 : x
  2. Step 2: Convert to fraction form
    100,324.81/138,400.53 = 60,030.46/x
  3. Step 3: Cross multiply
    100,324.81x = 138,400.53 × 60,030.46
  4. Step 4: Simplify right side
    100,324.81x = 8,308,246,788.14
  5. Step 5: Solve for x
    x = 8,308,246,788.14/100,324.81
  6. Step 6: Final answer
    x = 82,813.49

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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.