Home / 122,396.72-168,772.56-84,605.36

Finding the Fourth Proportional to 122,396.72, 168,772.56 and 84,605.36

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Solution

The fourth proportional to 122,396.72, 168,772.56 and 84,605.36 is: 116,662.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,396.72 : 168,772.56 = 84,605.36 : x
  2. Step 2: Convert to fraction form
    122,396.72/168,772.56 = 84,605.36/x
  3. Step 3: Cross multiply
    122,396.72x = 168,772.56 × 84,605.36
  4. Step 4: Simplify right side
    122,396.72x = 14,279,063,196.92
  5. Step 5: Solve for x
    x = 14,279,063,196.92/122,396.72
  6. Step 6: Final answer
    x = 116,662.14

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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.