Home / 122,174.40-168,588.96-71,192.64

Finding the Fourth Proportional to 122,174.40, 168,588.96 and 71,192.64

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Solution

The fourth proportional to 122,174.40, 168,588.96 and 71,192.64 is: 98,239.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,174.40 : 168,588.96 = 71,192.64 : x
  2. Step 2: Convert to fraction form
    122,174.40/168,588.96 = 71,192.64/x
  3. Step 3: Cross multiply
    122,174.40x = 168,588.96 × 71,192.64
  4. Step 4: Simplify right side
    122,174.40x = 12,002,293,137.25
  5. Step 5: Solve for x
    x = 12,002,293,137.25/122,174.40
  6. Step 6: Final answer
    x = 98,239.02

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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.