Home / 137,328.40-206,104.34-70,787.55

Finding the Fourth Proportional to 137,328.40, 206,104.34 and 70,787.55

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Solution

The fourth proportional to 137,328.40, 206,104.34 and 70,787.55 is: 106,238.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,328.40 : 206,104.34 = 70,787.55 : x
  2. Step 2: Convert to fraction form
    137,328.40/206,104.34 = 70,787.55/x
  3. Step 3: Cross multiply
    137,328.40x = 206,104.34 × 70,787.55
  4. Step 4: Simplify right side
    137,328.40x = 14,589,622,222.83
  5. Step 5: Solve for x
    x = 14,589,622,222.83/137,328.40
  6. Step 6: Final answer
    x = 106,238.93

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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.