Home / 151,255.58-208,709.33-87,581.07

Finding the Fourth Proportional to 151,255.58, 208,709.33 and 87,581.07

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Solution

The fourth proportional to 151,255.58, 208,709.33 and 87,581.07 is: 120,848.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,255.58 : 208,709.33 = 87,581.07 : x
  2. Step 2: Convert to fraction form
    151,255.58/208,709.33 = 87,581.07/x
  3. Step 3: Cross multiply
    151,255.58x = 208,709.33 × 87,581.07
  4. Step 4: Simplify right side
    151,255.58x = 18,278,986,002.48
  5. Step 5: Solve for x
    x = 18,278,986,002.48/151,255.58
  6. Step 6: Final answer
    x = 120,848.35

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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.