Home / 124,743.60-172,145.82-68,155.38

Finding the Fourth Proportional to 124,743.60, 172,145.82 and 68,155.38

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Solution

The fourth proportional to 124,743.60, 172,145.82 and 68,155.38 is: 94,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,743.60 : 172,145.82 = 68,155.38 : x
  2. Step 2: Convert to fraction form
    124,743.60/172,145.82 = 68,155.38/x
  3. Step 3: Cross multiply
    124,743.60x = 172,145.82 × 68,155.38
  4. Step 4: Simplify right side
    124,743.60x = 11,732,663,777.51
  5. Step 5: Solve for x
    x = 11,732,663,777.51/124,743.60
  6. Step 6: Final answer
    x = 94,054.23

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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.