Home / 185,985.60-256,661.78-101,102.80

Finding the Fourth Proportional to 185,985.60, 256,661.78 and 101,102.80

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Solution

The fourth proportional to 185,985.60, 256,661.78 and 101,102.80 is: 139,522.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,985.60 : 256,661.78 = 101,102.80 : x
  2. Step 2: Convert to fraction form
    185,985.60/256,661.78 = 101,102.80/x
  3. Step 3: Cross multiply
    185,985.60x = 256,661.78 × 101,102.80
  4. Step 4: Simplify right side
    185,985.60x = 25,949,224,610.98
  5. Step 5: Solve for x
    x = 25,949,224,610.98/185,985.60
  6. Step 6: Final answer
    x = 139,522.76

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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.