Home / 122,112.55-183,114.15-55,518.40

Finding the Fourth Proportional to 122,112.55, 183,114.15 and 55,518.40

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Solution

The fourth proportional to 122,112.55, 183,114.15 and 55,518.40 is: 83,252.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,112.55 : 183,114.15 = 55,518.40 : x
  2. Step 2: Convert to fraction form
    122,112.55/183,114.15 = 55,518.40/x
  3. Step 3: Cross multiply
    122,112.55x = 183,114.15 × 55,518.40
  4. Step 4: Simplify right side
    122,112.55x = 10,166,204,625.36
  5. Step 5: Solve for x
    x = 10,166,204,625.36/122,112.55
  6. Step 6: Final answer
    x = 83,252.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.