Home / 128,097.50-192,153.26-53,225.21

Finding the Fourth Proportional to 128,097.50, 192,153.26 and 53,225.21

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Solution

The fourth proportional to 128,097.50, 192,153.26 and 53,225.21 is: 79,840.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,097.50 : 192,153.26 = 53,225.21 : x
  2. Step 2: Convert to fraction form
    128,097.50/192,153.26 = 53,225.21/x
  3. Step 3: Cross multiply
    128,097.50x = 192,153.26 × 53,225.21
  4. Step 4: Simplify right side
    128,097.50x = 10,227,398,229.13
  5. Step 5: Solve for x
    x = 10,227,398,229.13/128,097.50
  6. Step 6: Final answer
    x = 79,840.74

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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.