Home / 151,120.06-208,542.78-83,133.06

Finding the Fourth Proportional to 151,120.06, 208,542.78 and 83,133.06

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Solution

The fourth proportional to 151,120.06, 208,542.78 and 83,133.06 is: 114,722.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,120.06 : 208,542.78 = 83,133.06 : x
  2. Step 2: Convert to fraction form
    151,120.06/208,542.78 = 83,133.06/x
  3. Step 3: Cross multiply
    151,120.06x = 208,542.78 × 83,133.06
  4. Step 4: Simplify right side
    151,120.06x = 17,336,799,442.31
  5. Step 5: Solve for x
    x = 17,336,799,442.31/151,120.06
  6. Step 6: Final answer
    x = 114,722.03

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1.5x scale

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.