Home / 127,037.97-190,525.05-52,178.78

Finding the Fourth Proportional to 127,037.97, 190,525.05 and 52,178.78

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Solution

The fourth proportional to 127,037.97, 190,525.05 and 52,178.78 is: 78,255.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,037.97 : 190,525.05 = 52,178.78 : x
  2. Step 2: Convert to fraction form
    127,037.97/190,525.05 = 52,178.78/x
  3. Step 3: Cross multiply
    127,037.97x = 190,525.05 × 52,178.78
  4. Step 4: Simplify right side
    127,037.97x = 9,941,363,715.81
  5. Step 5: Solve for x
    x = 9,941,363,715.81/127,037.97
  6. Step 6: Final answer
    x = 78,255.06

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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.