Home / 143,114.81-197,494.61-85,786.52

Finding the Fourth Proportional to 143,114.81, 197,494.61 and 85,786.52

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Solution

The fourth proportional to 143,114.81, 197,494.61 and 85,786.52 is: 118,383.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,114.81 : 197,494.61 = 85,786.52 : x
  2. Step 2: Convert to fraction form
    143,114.81/197,494.61 = 85,786.52/x
  3. Step 3: Cross multiply
    143,114.81x = 197,494.61 × 85,786.52
  4. Step 4: Simplify right side
    143,114.81x = 16,942,373,894.25
  5. Step 5: Solve for x
    x = 16,942,373,894.25/143,114.81
  6. Step 6: Final answer
    x = 118,383.10

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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.