Home / 151,335.48-208,811.28-87,669.48

Finding the Fourth Proportional to 151,335.48, 208,811.28 and 87,669.48

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Solution

The fourth proportional to 151,335.48, 208,811.28 and 87,669.48 is: 120,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,335.48 : 208,811.28 = 87,669.48 : x
  2. Step 2: Convert to fraction form
    151,335.48/208,811.28 = 87,669.48/x
  3. Step 3: Cross multiply
    151,335.48x = 208,811.28 × 87,669.48
  4. Step 4: Simplify right side
    151,335.48x = 18,306,376,335.73
  5. Step 5: Solve for x
    x = 18,306,376,335.73/151,335.48
  6. Step 6: Final answer
    x = 120,965.53

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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.