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Finding the Fourth Proportional to 163,763.48, 245,645.22 and 90,358.04

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Solution

The fourth proportional to 163,763.48, 245,645.22 and 90,358.04 is: 135,537.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,763.48 : 245,645.22 = 90,358.04 : x
  2. Step 2: Convert to fraction form
    163,763.48/245,645.22 = 90,358.04/x
  3. Step 3: Cross multiply
    163,763.48x = 245,645.22 × 90,358.04
  4. Step 4: Simplify right side
    163,763.48x = 22,196,020,614.57
  5. Step 5: Solve for x
    x = 22,196,020,614.57/163,763.48
  6. Step 6: Final answer
    x = 135,537.06

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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.