Home / 163,302.10-225,339.48-91,690

Finding the Fourth Proportional to 163,302.10, 225,339.48 and 91,690

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Solution

The fourth proportional to 163,302.10, 225,339.48 and 91,690 is: 126,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,302.10 : 225,339.48 = 91,690 : x
  2. Step 2: Convert to fraction form
    163,302.10/225,339.48 = 91,690/x
  3. Step 3: Cross multiply
    163,302.10x = 225,339.48 × 91,690
  4. Step 4: Simplify right side
    163,302.10x = 20,661,376,921.20
  5. Step 5: Solve for x
    x = 20,661,376,921.20/163,302.10
  6. Step 6: Final answer
    x = 126,522.42

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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.