Home / 124,823.68-172,240.32-74,512

Finding the Fourth Proportional to 124,823.68, 172,240.32 and 74,512

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Solution

The fourth proportional to 124,823.68, 172,240.32 and 74,512 is: 102,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,823.68 : 172,240.32 = 74,512 : x
  2. Step 2: Convert to fraction form
    124,823.68/172,240.32 = 74,512/x
  3. Step 3: Cross multiply
    124,823.68x = 172,240.32 × 74,512
  4. Step 4: Simplify right side
    124,823.68x = 12,833,970,723.84
  5. Step 5: Solve for x
    x = 12,833,970,723.84/124,823.68
  6. Step 6: Final answer
    x = 102,816.80

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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.