Home / 190,040.40-284,830.20-84,747.60

Finding the Fourth Proportional to 190,040.40, 284,830.20 and 84,747.60

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Solution

The fourth proportional to 190,040.40, 284,830.20 and 84,747.60 is: 127,018.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,040.40 : 284,830.20 = 84,747.60 : x
  2. Step 2: Convert to fraction form
    190,040.40/284,830.20 = 84,747.60/x
  3. Step 3: Cross multiply
    190,040.40x = 284,830.20 × 84,747.60
  4. Step 4: Simplify right side
    190,040.40x = 24,138,675,857.52
  5. Step 5: Solve for x
    x = 24,138,675,857.52/190,040.40
  6. Step 6: Final answer
    x = 127,018.65

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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.