Home / 124,732.32-172,137.60-68,144.64

Finding the Fourth Proportional to 124,732.32, 172,137.60 and 68,144.64

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Solution

The fourth proportional to 124,732.32, 172,137.60 and 68,144.64 is: 94,043.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,732.32 : 172,137.60 = 68,144.64 : x
  2. Step 2: Convert to fraction form
    124,732.32/172,137.60 = 68,144.64/x
  3. Step 3: Cross multiply
    124,732.32x = 172,137.60 × 68,144.64
  4. Step 4: Simplify right side
    124,732.32x = 11,730,254,782.46
  5. Step 5: Solve for x
    x = 11,730,254,782.46/124,732.32
  6. Step 6: Final answer
    x = 94,043.43

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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.