Home / 150,823.82-208,113.72-87,149.28

Finding the Fourth Proportional to 150,823.82, 208,113.72 and 87,149.28

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Solution

The fourth proportional to 150,823.82, 208,113.72 and 87,149.28 is: 120,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,823.82 : 208,113.72 = 87,149.28 : x
  2. Step 2: Convert to fraction form
    150,823.82/208,113.72 = 87,149.28/x
  3. Step 3: Cross multiply
    150,823.82x = 208,113.72 × 87,149.28
  4. Step 4: Simplify right side
    150,823.82x = 18,136,960,856.12
  5. Step 5: Solve for x
    x = 18,136,960,856.12/150,823.82
  6. Step 6: Final answer
    x = 120,252.63

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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.