Home / 99,457.20-137,324.16-67,614.48

Finding the Fourth Proportional to 99,457.20, 137,324.16 and 67,614.48

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Solution

The fourth proportional to 99,457.20, 137,324.16 and 67,614.48 is: 93,357.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,457.20 : 137,324.16 = 67,614.48 : x
  2. Step 2: Convert to fraction form
    99,457.20/137,324.16 = 67,614.48/x
  3. Step 3: Cross multiply
    99,457.20x = 137,324.16 × 67,614.48
  4. Step 4: Simplify right side
    99,457.20x = 9,285,101,669.84
  5. Step 5: Solve for x
    x = 9,285,101,669.84/99,457.20
  6. Step 6: Final answer
    x = 93,357.76

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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.