Home / 124,910.48-172,377.80-68,320.64

Finding the Fourth Proportional to 124,910.48, 172,377.80 and 68,320.64

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Solution

The fourth proportional to 124,910.48, 172,377.80 and 68,320.64 is: 94,283.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,910.48 : 172,377.80 = 68,320.64 : x
  2. Step 2: Convert to fraction form
    124,910.48/172,377.80 = 68,320.64/x
  3. Step 3: Cross multiply
    124,910.48x = 172,377.80 × 68,320.64
  4. Step 4: Simplify right side
    124,910.48x = 11,776,961,617.79
  5. Step 5: Solve for x
    x = 11,776,961,617.79/124,910.48
  6. Step 6: Final answer
    x = 94,283.21

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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.