Home / 124,206.89-186,338.00-45,321.12

Finding the Fourth Proportional to 124,206.89, 186,338.00 and 45,321.12

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Solution

The fourth proportional to 124,206.89, 186,338.00 and 45,321.12 is: 67,991.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,206.89 : 186,338.00 = 45,321.12 : x
  2. Step 2: Convert to fraction form
    124,206.89/186,338.00 = 45,321.12/x
  3. Step 3: Cross multiply
    124,206.89x = 186,338.00 × 45,321.12
  4. Step 4: Simplify right side
    124,206.89x = 8,445,046,971.86
  5. Step 5: Solve for x
    x = 8,445,046,971.86/124,206.89
  6. Step 6: Final answer
    x = 67,991.78

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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.