Home / 139,760.07-192,869.36-76,098.25

Finding the Fourth Proportional to 139,760.07, 192,869.36 and 76,098.25

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Solution

The fourth proportional to 139,760.07, 192,869.36 and 76,098.25 is: 105,015.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,760.07 : 192,869.36 = 76,098.25 : x
  2. Step 2: Convert to fraction form
    139,760.07/192,869.36 = 76,098.25/x
  3. Step 3: Cross multiply
    139,760.07x = 192,869.36 × 76,098.25
  4. Step 4: Simplify right side
    139,760.07x = 14,677,020,774.62
  5. Step 5: Solve for x
    x = 14,677,020,774.62/139,760.07
  6. Step 6: Final answer
    x = 105,015.84

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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.