Home / 143,285.76-197,683.20-98,496

Finding the Fourth Proportional to 143,285.76, 197,683.20 and 98,496

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Solution

The fourth proportional to 143,285.76, 197,683.20 and 98,496 is: 135,889.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,285.76 : 197,683.20 = 98,496 : x
  2. Step 2: Convert to fraction form
    143,285.76/197,683.20 = 98,496/x
  3. Step 3: Cross multiply
    143,285.76x = 197,683.20 × 98,496
  4. Step 4: Simplify right side
    143,285.76x = 19,471,004,467.20
  5. Step 5: Solve for x
    x = 19,471,004,467.20/143,285.76
  6. Step 6: Final answer
    x = 135,889.32

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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.