Home / 150,989.25-208,378.13-83,934.21

Finding the Fourth Proportional to 150,989.25, 208,378.13 and 83,934.21

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Solution

The fourth proportional to 150,989.25, 208,378.13 and 83,934.21 is: 115,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,989.25 : 208,378.13 = 83,934.21 : x
  2. Step 2: Convert to fraction form
    150,989.25/208,378.13 = 83,934.21/x
  3. Step 3: Cross multiply
    150,989.25x = 208,378.13 × 83,934.21
  4. Step 4: Simplify right side
    150,989.25x = 17,490,053,722.83
  5. Step 5: Solve for x
    x = 17,490,053,722.83/150,989.25
  6. Step 6: Final answer
    x = 115,836.42

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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.