Home / 137,621.09-206,382.07-47,639.35

Finding the Fourth Proportional to 137,621.09, 206,382.07 and 47,639.35

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Solution

The fourth proportional to 137,621.09, 206,382.07 and 47,639.35 is: 71,441.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,621.09 : 206,382.07 = 47,639.35 : x
  2. Step 2: Convert to fraction form
    137,621.09/206,382.07 = 47,639.35/x
  3. Step 3: Cross multiply
    137,621.09x = 206,382.07 × 47,639.35
  4. Step 4: Simplify right side
    137,621.09x = 9,831,908,023.65
  5. Step 5: Solve for x
    x = 9,831,908,023.65/137,621.09
  6. Step 6: Final answer
    x = 71,441.87

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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.