Home / 137,939.06-205,701.50-136,677.89

Finding the Fourth Proportional to 137,939.06, 205,701.50 and 136,677.89

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Solution

The fourth proportional to 137,939.06, 205,701.50 and 136,677.89 is: 203,820.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,939.06 : 205,701.50 = 136,677.89 : x
  2. Step 2: Convert to fraction form
    137,939.06/205,701.50 = 136,677.89/x
  3. Step 3: Cross multiply
    137,939.06x = 205,701.50 × 136,677.89
  4. Step 4: Simplify right side
    137,939.06x = 28,114,847,845.78
  5. Step 5: Solve for x
    x = 28,114,847,845.78/137,939.06
  6. Step 6: Final answer
    x = 203,820.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.