Home / 208,099.10-312,091.05-83,452.70

Finding the Fourth Proportional to 208,099.10, 312,091.05 and 83,452.70

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Solution

The fourth proportional to 208,099.10, 312,091.05 and 83,452.70 is: 125,155.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,099.10 : 312,091.05 = 83,452.70 : x
  2. Step 2: Convert to fraction form
    208,099.10/312,091.05 = 83,452.70/x
  3. Step 3: Cross multiply
    208,099.10x = 312,091.05 × 83,452.70
  4. Step 4: Simplify right side
    208,099.10x = 26,044,840,768.34
  5. Step 5: Solve for x
    x = 26,044,840,768.34/208,099.10
  6. Step 6: Final answer
    x = 125,155.95

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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.