Home / 143,056.23-197,404.09-85,694.56

Finding the Fourth Proportional to 143,056.23, 197,404.09 and 85,694.56

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Solution

The fourth proportional to 143,056.23, 197,404.09 and 85,694.56 is: 118,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,056.23 : 197,404.09 = 85,694.56 : x
  2. Step 2: Convert to fraction form
    143,056.23/197,404.09 = 85,694.56/x
  3. Step 3: Cross multiply
    143,056.23x = 197,404.09 × 85,694.56
  4. Step 4: Simplify right side
    143,056.23x = 16,916,455,927.00
  5. Step 5: Solve for x
    x = 16,916,455,927.00/143,056.23
  6. Step 6: Final answer
    x = 118,250.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.