Home / 122,417.64-168,773.94-79,902.36

Finding the Fourth Proportional to 122,417.64, 168,773.94 and 79,902.36

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Solution

The fourth proportional to 122,417.64, 168,773.94 and 79,902.36 is: 110,159.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,417.64 : 168,773.94 = 79,902.36 : x
  2. Step 2: Convert to fraction form
    122,417.64/168,773.94 = 79,902.36/x
  3. Step 3: Cross multiply
    122,417.64x = 168,773.94 × 79,902.36
  4. Step 4: Simplify right side
    122,417.64x = 13,485,436,112.50
  5. Step 5: Solve for x
    x = 13,485,436,112.50/122,417.64
  6. Step 6: Final answer
    x = 110,159.26

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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.