Home / 137,318.02-205,408.31-128,919.94

Finding the Fourth Proportional to 137,318.02, 205,408.31 and 128,919.94

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Solution

The fourth proportional to 137,318.02, 205,408.31 and 128,919.94 is: 192,845.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,318.02 : 205,408.31 = 128,919.94 : x
  2. Step 2: Convert to fraction form
    137,318.02/205,408.31 = 128,919.94/x
  3. Step 3: Cross multiply
    137,318.02x = 205,408.31 × 128,919.94
  4. Step 4: Simplify right side
    137,318.02x = 26,481,225,842.58
  5. Step 5: Solve for x
    x = 26,481,225,842.58/137,318.02
  6. Step 6: Final answer
    x = 192,845.97

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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.