Home / 122,385.10-168,892.83-71,396.14

Finding the Fourth Proportional to 122,385.10, 168,892.83 and 71,396.14

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Solution

The fourth proportional to 122,385.10, 168,892.83 and 71,396.14 is: 98,527.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,385.10 : 168,892.83 = 71,396.14 : x
  2. Step 2: Convert to fraction form
    122,385.10/168,892.83 = 71,396.14/x
  3. Step 3: Cross multiply
    122,385.10x = 168,892.83 × 71,396.14
  4. Step 4: Simplify right side
    122,385.10x = 12,058,296,135.68
  5. Step 5: Solve for x
    x = 12,058,296,135.68/122,385.10
  6. Step 6: Final answer
    x = 98,527.49

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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.