Home / 163,720.20-245,234.70-136,072.20

Finding the Fourth Proportional to 163,720.20, 245,234.70 and 136,072.20

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Solution

The fourth proportional to 163,720.20, 245,234.70 and 136,072.20 is: 203,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,720.20 : 245,234.70 = 136,072.20 : x
  2. Step 2: Convert to fraction form
    163,720.20/245,234.70 = 136,072.20/x
  3. Step 3: Cross multiply
    163,720.20x = 245,234.70 × 136,072.20
  4. Step 4: Simplify right side
    163,720.20x = 33,369,625,145.34
  5. Step 5: Solve for x
    x = 33,369,625,145.34/163,720.20
  6. Step 6: Final answer
    x = 203,821.06

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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.