Home / 137,391.03-206,116.11-42,619.32

Finding the Fourth Proportional to 137,391.03, 206,116.11 and 42,619.32

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Solution

The fourth proportional to 137,391.03, 206,116.11 and 42,619.32 is: 63,938.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,391.03 : 206,116.11 = 42,619.32 : x
  2. Step 2: Convert to fraction form
    137,391.03/206,116.11 = 42,619.32/x
  3. Step 3: Cross multiply
    137,391.03x = 206,116.11 × 42,619.32
  4. Step 4: Simplify right side
    137,391.03x = 8,784,528,449.25
  5. Step 5: Solve for x
    x = 8,784,528,449.25/137,391.03
  6. Step 6: Final answer
    x = 63,938.15

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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.