Home / 209,884.52-314,834.46-85,222.76

Finding the Fourth Proportional to 209,884.52, 314,834.46 and 85,222.76

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Solution

The fourth proportional to 209,884.52, 314,834.46 and 85,222.76 is: 127,837.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,884.52 : 314,834.46 = 85,222.76 : x
  2. Step 2: Convert to fraction form
    209,884.52/314,834.46 = 85,222.76/x
  3. Step 3: Cross multiply
    209,884.52x = 314,834.46 × 85,222.76
  4. Step 4: Simplify right side
    209,884.52x = 26,831,061,624.31
  5. Step 5: Solve for x
    x = 26,831,061,624.31/209,884.52
  6. Step 6: Final answer
    x = 127,837.26

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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.