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Finding the Fourth Proportional to 137,999.55, 206,999.33 and 95,790.45

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Solution

The fourth proportional to 137,999.55, 206,999.33 and 95,790.45 is: 143,685.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,999.55 : 206,999.33 = 95,790.45 : x
  2. Step 2: Convert to fraction form
    137,999.55/206,999.33 = 95,790.45/x
  3. Step 3: Cross multiply
    137,999.55x = 206,999.33 × 95,790.45
  4. Step 4: Simplify right side
    137,999.55x = 19,828,558,491.45
  5. Step 5: Solve for x
    x = 19,828,558,491.45/137,999.55
  6. Step 6: Final answer
    x = 143,685.68

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1.5x scale

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.