Home / 151,370.38-208,888.50-87,714.10

Finding the Fourth Proportional to 151,370.38, 208,888.50 and 87,714.10

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Solution

The fourth proportional to 151,370.38, 208,888.50 and 87,714.10 is: 121,043.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,370.38 : 208,888.50 = 87,714.10 : x
  2. Step 2: Convert to fraction form
    151,370.38/208,888.50 = 87,714.10/x
  3. Step 3: Cross multiply
    151,370.38x = 208,888.50 × 87,714.10
  4. Step 4: Simplify right side
    151,370.38x = 18,322,466,777.85
  5. Step 5: Solve for x
    x = 18,322,466,777.85/151,370.38
  6. Step 6: Final answer
    x = 121,043.94

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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.