Home / 207,869.10-311,895.45-101,193.90

Finding the Fourth Proportional to 207,869.10, 311,895.45 and 101,193.90

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Solution

The fourth proportional to 207,869.10, 311,895.45 and 101,193.90 is: 151,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,869.10 : 311,895.45 = 101,193.90 : x
  2. Step 2: Convert to fraction form
    207,869.10/311,895.45 = 101,193.90/x
  3. Step 3: Cross multiply
    207,869.10x = 311,895.45 × 101,193.90
  4. Step 4: Simplify right side
    207,869.10x = 31,561,916,977.76
  5. Step 5: Solve for x
    x = 31,561,916,977.76/207,869.10
  6. Step 6: Final answer
    x = 151,835.54

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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.