Home / 122,116.68-168,520.03-68,402.21

Finding the Fourth Proportional to 122,116.68, 168,520.03 and 68,402.21

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Solution

The fourth proportional to 122,116.68, 168,520.03 and 68,402.21 is: 94,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,116.68 : 168,520.03 = 68,402.21 : x
  2. Step 2: Convert to fraction form
    122,116.68/168,520.03 = 68,402.21/x
  3. Step 3: Cross multiply
    122,116.68x = 168,520.03 × 68,402.21
  4. Step 4: Simplify right side
    122,116.68x = 11,527,141,467.66
  5. Step 5: Solve for x
    x = 11,527,141,467.66/122,116.68
  6. Step 6: Final answer
    x = 94,394.49

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1.5x scale

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.