Home / 137,074.41-189,153.90-76,650.03

Finding the Fourth Proportional to 137,074.41, 189,153.90 and 76,650.03

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Solution

The fourth proportional to 137,074.41, 189,153.90 and 76,650.03 is: 105,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,074.41 : 189,153.90 = 76,650.03 : x
  2. Step 2: Convert to fraction form
    137,074.41/189,153.90 = 76,650.03/x
  3. Step 3: Cross multiply
    137,074.41x = 189,153.90 × 76,650.03
  4. Step 4: Simplify right side
    137,074.41x = 14,498,652,109.62
  5. Step 5: Solve for x
    x = 14,498,652,109.62/137,074.41
  6. Step 6: Final answer
    x = 105,772.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.