Home / 151,005.33-208,393.16-86,484.78

Finding the Fourth Proportional to 151,005.33, 208,393.16 and 86,484.78

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Solution

The fourth proportional to 151,005.33, 208,393.16 and 86,484.78 is: 119,352.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,005.33 : 208,393.16 = 86,484.78 : x
  2. Step 2: Convert to fraction form
    151,005.33/208,393.16 = 86,484.78/x
  3. Step 3: Cross multiply
    151,005.33x = 208,393.16 × 86,484.78
  4. Step 4: Simplify right side
    151,005.33x = 18,022,836,163.68
  5. Step 5: Solve for x
    x = 18,022,836,163.68/151,005.33
  6. Step 6: Final answer
    x = 119,352.32

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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.