Home / 124,934.32-172,407.92-68,345

Finding the Fourth Proportional to 124,934.32, 172,407.92 and 68,345

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Solution

The fourth proportional to 124,934.32, 172,407.92 and 68,345 is: 94,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,934.32 : 172,407.92 = 68,345 : x
  2. Step 2: Convert to fraction form
    124,934.32/172,407.92 = 68,345/x
  3. Step 3: Cross multiply
    124,934.32x = 172,407.92 × 68,345
  4. Step 4: Simplify right side
    124,934.32x = 11,783,219,292.40
  5. Step 5: Solve for x
    x = 11,783,219,292.40/124,934.32
  6. Step 6: Final answer
    x = 94,315.31

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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.