Home / 124,765.17-172,175.85-68,176.50

Finding the Fourth Proportional to 124,765.17, 172,175.85 and 68,176.50

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Solution

The fourth proportional to 124,765.17, 172,175.85 and 68,176.50 is: 94,083.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,765.17 : 172,175.85 = 68,176.50 : x
  2. Step 2: Convert to fraction form
    124,765.17/172,175.85 = 68,176.50/x
  3. Step 3: Cross multiply
    124,765.17x = 172,175.85 × 68,176.50
  4. Step 4: Simplify right side
    124,765.17x = 11,738,346,837.53
  5. Step 5: Solve for x
    x = 11,738,346,837.53/124,765.17
  6. Step 6: Final answer
    x = 94,083.52

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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.