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Finding the Fourth Proportional to 163,793.75, 245,731.41 and 130,186.58

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Solution

The fourth proportional to 163,793.75, 245,731.41 and 130,186.58 is: 195,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,793.75 : 245,731.41 = 130,186.58 : x
  2. Step 2: Convert to fraction form
    163,793.75/245,731.41 = 130,186.58/x
  3. Step 3: Cross multiply
    163,793.75x = 245,731.41 × 130,186.58
  4. Step 4: Simplify right side
    163,793.75x = 31,990,930,637.82
  5. Step 5: Solve for x
    x = 31,990,930,637.82/163,793.75
  6. Step 6: Final answer
    x = 195,312.29

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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.