Home / 137,868.11-206,905.10-102,411.30

Finding the Fourth Proportional to 137,868.11, 206,905.10 and 102,411.30

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Solution

The fourth proportional to 137,868.11, 206,905.10 and 102,411.30 is: 153,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,868.11 : 206,905.10 = 102,411.30 : x
  2. Step 2: Convert to fraction form
    137,868.11/206,905.10 = 102,411.30/x
  3. Step 3: Cross multiply
    137,868.11x = 206,905.10 × 102,411.30
  4. Step 4: Simplify right side
    137,868.11x = 21,189,420,267.63
  5. Step 5: Solve for x
    x = 21,189,420,267.63/137,868.11
  6. Step 6: Final answer
    x = 153,693.41

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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.