Home / 124,717.14-172,101.60-68,128.47

Finding the Fourth Proportional to 124,717.14, 172,101.60 and 68,128.47

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Solution

The fourth proportional to 124,717.14, 172,101.60 and 68,128.47 is: 94,012.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,717.14 : 172,101.60 = 68,128.47 : x
  2. Step 2: Convert to fraction form
    124,717.14/172,101.60 = 68,128.47/x
  3. Step 3: Cross multiply
    124,717.14x = 172,101.60 × 68,128.47
  4. Step 4: Simplify right side
    124,717.14x = 11,725,018,692.55
  5. Step 5: Solve for x
    x = 11,725,018,692.55/124,717.14
  6. Step 6: Final answer
    x = 94,012.89

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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.