Home / 122,136.80-183,205.20-101,141.60

Finding the Fourth Proportional to 122,136.80, 183,205.20 and 101,141.60

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Solution

The fourth proportional to 122,136.80, 183,205.20 and 101,141.60 is: 151,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,136.80 : 183,205.20 = 101,141.60 : x
  2. Step 2: Convert to fraction form
    122,136.80/183,205.20 = 101,141.60/x
  3. Step 3: Cross multiply
    122,136.80x = 183,205.20 × 101,141.60
  4. Step 4: Simplify right side
    122,136.80x = 18,529,667,056.32
  5. Step 5: Solve for x
    x = 18,529,667,056.32/122,136.80
  6. Step 6: Final answer
    x = 151,712.40

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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.