Home / 127,061.50-190,578.86-52,189.54

Finding the Fourth Proportional to 127,061.50, 190,578.86 and 52,189.54

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Solution

The fourth proportional to 127,061.50, 190,578.86 and 52,189.54 is: 78,278.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,061.50 : 190,578.86 = 52,189.54 : x
  2. Step 2: Convert to fraction form
    127,061.50/190,578.86 = 52,189.54/x
  3. Step 3: Cross multiply
    127,061.50x = 190,578.86 × 52,189.54
  4. Step 4: Simplify right side
    127,061.50x = 9,946,223,037.12
  5. Step 5: Solve for x
    x = 9,946,223,037.12/127,061.50
  6. Step 6: Final answer
    x = 78,278.81

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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.