Home / 124,745.76-172,147.14-68,155.92

Finding the Fourth Proportional to 124,745.76, 172,147.14 and 68,155.92

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Solution

The fourth proportional to 124,745.76, 172,147.14 and 68,155.92 is: 94,054.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,745.76 : 172,147.14 = 68,155.92 : x
  2. Step 2: Convert to fraction form
    124,745.76/172,147.14 = 68,155.92/x
  3. Step 3: Cross multiply
    124,745.76x = 172,147.14 × 68,155.92
  4. Step 4: Simplify right side
    124,745.76x = 11,732,846,702.07
  5. Step 5: Solve for x
    x = 11,732,846,702.07/124,745.76
  6. Step 6: Final answer
    x = 94,054.07

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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.