Home / 122,125.62-168,513.77-68,412.90

Finding the Fourth Proportional to 122,125.62, 168,513.77 and 68,412.90

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Solution

The fourth proportional to 122,125.62, 168,513.77 and 68,412.90 is: 94,398.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,125.62 : 168,513.77 = 68,412.90 : x
  2. Step 2: Convert to fraction form
    122,125.62/168,513.77 = 68,412.90/x
  3. Step 3: Cross multiply
    122,125.62x = 168,513.77 × 68,412.90
  4. Step 4: Simplify right side
    122,125.62x = 11,528,516,113.77
  5. Step 5: Solve for x
    x = 11,528,516,113.77/122,125.62
  6. Step 6: Final answer
    x = 94,398.83

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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.