Home / 137,081.57-205,638.75-48,316.70

Finding the Fourth Proportional to 137,081.57, 205,638.75 and 48,316.70

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Solution

The fourth proportional to 137,081.57, 205,638.75 and 48,316.70 is: 72,480.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,081.57 : 205,638.75 = 48,316.70 : x
  2. Step 2: Convert to fraction form
    137,081.57/205,638.75 = 48,316.70/x
  3. Step 3: Cross multiply
    137,081.57x = 205,638.75 × 48,316.70
  4. Step 4: Simplify right side
    137,081.57x = 9,935,786,306.22
  5. Step 5: Solve for x
    x = 9,935,786,306.22/137,081.57
  6. Step 6: Final answer
    x = 72,480.84

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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.