Home / 127,578.24-192,231.72-105,877.80

Finding the Fourth Proportional to 127,578.24, 192,231.72 and 105,877.80

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Solution

The fourth proportional to 127,578.24, 192,231.72 and 105,877.80 is: 159,534.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,578.24 : 192,231.72 = 105,877.80 : x
  2. Step 2: Convert to fraction form
    127,578.24/192,231.72 = 105,877.80/x
  3. Step 3: Cross multiply
    127,578.24x = 192,231.72 × 105,877.80
  4. Step 4: Simplify right side
    127,578.24x = 20,353,071,603.82
  5. Step 5: Solve for x
    x = 20,353,071,603.82/127,578.24
  6. Step 6: Final answer
    x = 159,534.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.