Home / 124,981.64-172,474.65-68,393

Finding the Fourth Proportional to 124,981.64, 172,474.65 and 68,393

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Solution

The fourth proportional to 124,981.64, 172,474.65 and 68,393 is: 94,382.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,981.64 : 172,474.65 = 68,393 : x
  2. Step 2: Convert to fraction form
    124,981.64/172,474.65 = 68,393/x
  3. Step 3: Cross multiply
    124,981.64x = 172,474.65 × 68,393
  4. Step 4: Simplify right side
    124,981.64x = 11,796,058,737.45
  5. Step 5: Solve for x
    x = 11,796,058,737.45/124,981.64
  6. Step 6: Final answer
    x = 94,382.33

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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.