Home / 132,358.69-198,540.08-42,418.32

Finding the Fourth Proportional to 132,358.69, 198,540.08 and 42,418.32

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Solution

The fourth proportional to 132,358.69, 198,540.08 and 42,418.32 is: 63,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,358.69 : 198,540.08 = 42,418.32 : x
  2. Step 2: Convert to fraction form
    132,358.69/198,540.08 = 42,418.32/x
  3. Step 3: Cross multiply
    132,358.69x = 198,540.08 × 42,418.32
  4. Step 4: Simplify right side
    132,358.69x = 8,421,735,848.72
  5. Step 5: Solve for x
    x = 8,421,735,848.72/132,358.69
  6. Step 6: Final answer
    x = 63,628.13

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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.