Home / 208,099.60-312,091.80-83,453.20

Finding the Fourth Proportional to 208,099.60, 312,091.80 and 83,453.20

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Solution

The fourth proportional to 208,099.60, 312,091.80 and 83,453.20 is: 125,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,099.60 : 312,091.80 = 83,453.20 : x
  2. Step 2: Convert to fraction form
    208,099.60/312,091.80 = 83,453.20/x
  3. Step 3: Cross multiply
    208,099.60x = 312,091.80 × 83,453.20
  4. Step 4: Simplify right side
    208,099.60x = 26,045,059,403.76
  5. Step 5: Solve for x
    x = 26,045,059,403.76/208,099.60
  6. Step 6: Final answer
    x = 125,156.70

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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.