Home / 124,983.72-172,450.86-74,012.46

Finding the Fourth Proportional to 124,983.72, 172,450.86 and 74,012.46

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Solution

The fourth proportional to 124,983.72, 172,450.86 and 74,012.46 is: 102,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,983.72 : 172,450.86 = 74,012.46 : x
  2. Step 2: Convert to fraction form
    124,983.72/172,450.86 = 74,012.46/x
  3. Step 3: Cross multiply
    124,983.72x = 172,450.86 × 74,012.46
  4. Step 4: Simplify right side
    124,983.72x = 12,763,512,377.72
  5. Step 5: Solve for x
    x = 12,763,512,377.72/124,983.72
  6. Step 6: Final answer
    x = 102,121.40

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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.