Home / 125,306.36-172,922.70-68,718.94

Finding the Fourth Proportional to 125,306.36, 172,922.70 and 68,718.94

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Solution

The fourth proportional to 125,306.36, 172,922.70 and 68,718.94 is: 94,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,306.36 : 172,922.70 = 68,718.94 : x
  2. Step 2: Convert to fraction form
    125,306.36/172,922.70 = 68,718.94/x
  3. Step 3: Cross multiply
    125,306.36x = 172,922.70 × 68,718.94
  4. Step 4: Simplify right side
    125,306.36x = 11,883,064,645.94
  5. Step 5: Solve for x
    x = 11,883,064,645.94/125,306.36
  6. Step 6: Final answer
    x = 94,832.10

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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.