Home / 150,853.85-208,155.19-87,179.36

Finding the Fourth Proportional to 150,853.85, 208,155.19 and 87,179.36

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Solution

The fourth proportional to 150,853.85, 208,155.19 and 87,179.36 is: 120,294.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,853.85 : 208,155.19 = 87,179.36 : x
  2. Step 2: Convert to fraction form
    150,853.85/208,155.19 = 87,179.36/x
  3. Step 3: Cross multiply
    150,853.85x = 208,155.19 × 87,179.36
  4. Step 4: Simplify right side
    150,853.85x = 18,146,834,986.15
  5. Step 5: Solve for x
    x = 18,146,834,986.15/150,853.85
  6. Step 6: Final answer
    x = 120,294.15

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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.