Home / 151,369.92-208,935.72-87,736.32

Finding the Fourth Proportional to 151,369.92, 208,935.72 and 87,736.32

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Solution

The fourth proportional to 151,369.92, 208,935.72 and 87,736.32 is: 121,102.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,369.92 : 208,935.72 = 87,736.32 : x
  2. Step 2: Convert to fraction form
    151,369.92/208,935.72 = 87,736.32/x
  3. Step 3: Cross multiply
    151,369.92x = 208,935.72 × 87,736.32
  4. Step 4: Simplify right side
    151,369.92x = 18,331,251,189.35
  5. Step 5: Solve for x
    x = 18,331,251,189.35/151,369.92
  6. Step 6: Final answer
    x = 121,102.34

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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.