Home / 132,564.58-198,841.32-90,339.16

Finding the Fourth Proportional to 132,564.58, 198,841.32 and 90,339.16

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Solution

The fourth proportional to 132,564.58, 198,841.32 and 90,339.16 is: 135,504.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,564.58 : 198,841.32 = 90,339.16 : x
  2. Step 2: Convert to fraction form
    132,564.58/198,841.32 = 90,339.16/x
  3. Step 3: Cross multiply
    132,564.58x = 198,841.32 × 90,339.16
  4. Step 4: Simplify right side
    132,564.58x = 17,963,157,822.09
  5. Step 5: Solve for x
    x = 17,963,157,822.09/132,564.58
  6. Step 6: Final answer
    x = 135,504.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.