Home / 151,461.68-209,024.16-87,819.44

Finding the Fourth Proportional to 151,461.68, 209,024.16 and 87,819.44

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Solution

The fourth proportional to 151,461.68, 209,024.16 and 87,819.44 is: 121,194.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,461.68 : 209,024.16 = 87,819.44 : x
  2. Step 2: Convert to fraction form
    151,461.68/209,024.16 = 87,819.44/x
  3. Step 3: Cross multiply
    151,461.68x = 209,024.16 × 87,819.44
  4. Step 4: Simplify right side
    151,461.68x = 18,356,384,677.67
  5. Step 5: Solve for x
    x = 18,356,384,677.67/151,461.68
  6. Step 6: Final answer
    x = 121,194.91

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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.