Home / 151,344.48-208,845.36-87,670.92

Finding the Fourth Proportional to 151,344.48, 208,845.36 and 87,670.92

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Solution

The fourth proportional to 151,344.48, 208,845.36 and 87,670.92 is: 120,980.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,344.48 : 208,845.36 = 87,670.92 : x
  2. Step 2: Convert to fraction form
    151,344.48/208,845.36 = 87,670.92/x
  3. Step 3: Cross multiply
    151,344.48x = 208,845.36 × 87,670.92
  4. Step 4: Simplify right side
    151,344.48x = 18,309,664,848.93
  5. Step 5: Solve for x
    x = 18,309,664,848.93/151,344.48
  6. Step 6: Final answer
    x = 120,980.06

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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.