Home / 124,899.23-172,365.10-68,310.61

Finding the Fourth Proportional to 124,899.23, 172,365.10 and 68,310.61

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Solution

The fourth proportional to 124,899.23, 172,365.10 and 68,310.61 is: 94,270.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,899.23 : 172,365.10 = 68,310.61 : x
  2. Step 2: Convert to fraction form
    124,899.23/172,365.10 = 68,310.61/x
  3. Step 3: Cross multiply
    124,899.23x = 172,365.10 × 68,310.61
  4. Step 4: Simplify right side
    124,899.23x = 11,774,364,522.02
  5. Step 5: Solve for x
    x = 11,774,364,522.02/124,899.23
  6. Step 6: Final answer
    x = 94,270.91

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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.