Home / 150,819.84-208,119.24-87,161.76

Finding the Fourth Proportional to 150,819.84, 208,119.24 and 87,161.76

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Solution

The fourth proportional to 150,819.84, 208,119.24 and 87,161.76 is: 120,276.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,819.84 : 208,119.24 = 87,161.76 : x
  2. Step 2: Convert to fraction form
    150,819.84/208,119.24 = 87,161.76/x
  3. Step 3: Cross multiply
    150,819.84x = 208,119.24 × 87,161.76
  4. Step 4: Simplify right side
    150,819.84x = 18,140,039,248.26
  5. Step 5: Solve for x
    x = 18,140,039,248.26/150,819.84
  6. Step 6: Final answer
    x = 120,276.21

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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.