Home / 151,320.83-208,814.73-86,786.73

Finding the Fourth Proportional to 151,320.83, 208,814.73 and 86,786.73

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Solution

The fourth proportional to 151,320.83, 208,814.73 and 86,786.73 is: 119,761.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,320.83 : 208,814.73 = 86,786.73 : x
  2. Step 2: Convert to fraction form
    151,320.83/208,814.73 = 86,786.73/x
  3. Step 3: Cross multiply
    151,320.83x = 208,814.73 × 86,786.73
  4. Step 4: Simplify right side
    151,320.83x = 18,122,347,267.08
  5. Step 5: Solve for x
    x = 18,122,347,267.08/151,320.83
  6. Step 6: Final answer
    x = 119,761.09

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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.