Home / 143,313.52-197,791.32-86,725.84

Finding the Fourth Proportional to 143,313.52, 197,791.32 and 86,725.84

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Solution

The fourth proportional to 143,313.52, 197,791.32 and 86,725.84 is: 119,692.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,313.52 : 197,791.32 = 86,725.84 : x
  2. Step 2: Convert to fraction form
    143,313.52/197,791.32 = 86,725.84/x
  3. Step 3: Cross multiply
    143,313.52x = 197,791.32 × 86,725.84
  4. Step 4: Simplify right side
    143,313.52x = 17,153,618,371.71
  5. Step 5: Solve for x
    x = 17,153,618,371.71/143,313.52
  6. Step 6: Final answer
    x = 119,692.95

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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.