Home / 150,830.30-208,160.26-86,286.72

Finding the Fourth Proportional to 150,830.30, 208,160.26 and 86,286.72

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Solution

The fourth proportional to 150,830.30, 208,160.26 and 86,286.72 is: 119,083.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,830.30 : 208,160.26 = 86,286.72 : x
  2. Step 2: Convert to fraction form
    150,830.30/208,160.26 = 86,286.72/x
  3. Step 3: Cross multiply
    150,830.30x = 208,160.26 × 86,286.72
  4. Step 4: Simplify right side
    150,830.30x = 17,961,466,069.75
  5. Step 5: Solve for x
    x = 17,961,466,069.75/150,830.30
  6. Step 6: Final answer
    x = 119,083.94

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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.