Home / 151,436.16-208,974.42-87,794.64

Finding the Fourth Proportional to 151,436.16, 208,974.42 and 87,794.64

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Solution

The fourth proportional to 151,436.16, 208,974.42 and 87,794.64 is: 121,152.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,436.16 : 208,974.42 = 87,794.64 : x
  2. Step 2: Convert to fraction form
    151,436.16/208,974.42 = 87,794.64/x
  3. Step 3: Cross multiply
    151,436.16x = 208,974.42 × 87,794.64
  4. Step 4: Simplify right side
    151,436.16x = 18,346,833,973.11
  5. Step 5: Solve for x
    x = 18,346,833,973.11/151,436.16
  6. Step 6: Final answer
    x = 121,152.27

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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.