Home / 150,818.25-208,121.07-86,288.77

Finding the Fourth Proportional to 150,818.25, 208,121.07 and 86,288.77

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Solution

The fourth proportional to 150,818.25, 208,121.07 and 86,288.77 is: 119,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,818.25 : 208,121.07 = 86,288.77 : x
  2. Step 2: Convert to fraction form
    150,818.25/208,121.07 = 86,288.77/x
  3. Step 3: Cross multiply
    150,818.25x = 208,121.07 × 86,288.77
  4. Step 4: Simplify right side
    150,818.25x = 17,958,510,897.09
  5. Step 5: Solve for x
    x = 17,958,510,897.09/150,818.25
  6. Step 6: Final answer
    x = 119,073.86

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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.