Home / 151,815.96-209,490.12-88,141.32

Finding the Fourth Proportional to 151,815.96, 209,490.12 and 88,141.32

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Solution

The fourth proportional to 151,815.96, 209,490.12 and 88,141.32 is: 121,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,815.96 : 209,490.12 = 88,141.32 : x
  2. Step 2: Convert to fraction form
    151,815.96/209,490.12 = 88,141.32/x
  3. Step 3: Cross multiply
    151,815.96x = 209,490.12 × 88,141.32
  4. Step 4: Simplify right side
    151,815.96x = 18,464,735,703.76
  5. Step 5: Solve for x
    x = 18,464,735,703.76/151,815.96
  6. Step 6: Final answer
    x = 121,625.79

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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.