Home / 76,152.15-113,683.10-66,190.37

Finding the Fourth Proportional to 76,152.15, 113,683.10 and 66,190.37

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Solution

The fourth proportional to 76,152.15, 113,683.10 and 66,190.37 is: 98,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,152.15 : 113,683.10 = 66,190.37 : x
  2. Step 2: Convert to fraction form
    76,152.15/113,683.10 = 66,190.37/x
  3. Step 3: Cross multiply
    76,152.15x = 113,683.10 × 66,190.37
  4. Step 4: Simplify right side
    76,152.15x = 7,524,725,552.38
  5. Step 5: Solve for x
    x = 7,524,725,552.38/76,152.15
  6. Step 6: Final answer
    x = 98,811.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.