Home / 143,285.72-197,735.45-89,601.86

Finding the Fourth Proportional to 143,285.72, 197,735.45 and 89,601.86

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Solution

The fourth proportional to 143,285.72, 197,735.45 and 89,601.86 is: 123,651.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,285.72 : 197,735.45 = 89,601.86 : x
  2. Step 2: Convert to fraction form
    143,285.72/197,735.45 = 89,601.86/x
  3. Step 3: Cross multiply
    143,285.72x = 197,735.45 × 89,601.86
  4. Step 4: Simplify right side
    143,285.72x = 17,717,462,671.25
  5. Step 5: Solve for x
    x = 17,717,462,671.25/143,285.72
  6. Step 6: Final answer
    x = 123,651.28

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1.5x scale

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.