Home / 121,995.21-168,354.24-68,285.19

Finding the Fourth Proportional to 121,995.21, 168,354.24 and 68,285.19

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Solution

The fourth proportional to 121,995.21, 168,354.24 and 68,285.19 is: 94,234.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,995.21 : 168,354.24 = 68,285.19 : x
  2. Step 2: Convert to fraction form
    121,995.21/168,354.24 = 68,285.19/x
  3. Step 3: Cross multiply
    121,995.21x = 168,354.24 × 68,285.19
  4. Step 4: Simplify right side
    121,995.21x = 11,496,101,265.71
  5. Step 5: Solve for x
    x = 11,496,101,265.71/121,995.21
  6. Step 6: Final answer
    x = 94,234.04

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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.