Home / 124,743.57-172,145.84-68,155.35

Finding the Fourth Proportional to 124,743.57, 172,145.84 and 68,155.35

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Solution

The fourth proportional to 124,743.57, 172,145.84 and 68,155.35 is: 94,054.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,743.57 : 172,145.84 = 68,155.35 : x
  2. Step 2: Convert to fraction form
    124,743.57/172,145.84 = 68,155.35/x
  3. Step 3: Cross multiply
    124,743.57x = 172,145.84 × 68,155.35
  4. Step 4: Simplify right side
    124,743.57x = 11,732,659,635.47
  5. Step 5: Solve for x
    x = 11,732,659,635.47/124,743.57
  6. Step 6: Final answer
    x = 94,054.22

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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.