Home / 143,151.25-197,566.95-86,563.03

Finding the Fourth Proportional to 143,151.25, 197,566.95 and 86,563.03

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Solution

The fourth proportional to 143,151.25, 197,566.95 and 86,563.03 is: 119,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,151.25 : 197,566.95 = 86,563.03 : x
  2. Step 2: Convert to fraction form
    143,151.25/197,566.95 = 86,563.03/x
  3. Step 3: Cross multiply
    143,151.25x = 197,566.95 × 86,563.03
  4. Step 4: Simplify right side
    143,151.25x = 17,101,993,819.86
  5. Step 5: Solve for x
    x = 17,101,993,819.86/143,151.25
  6. Step 6: Final answer
    x = 119,468.00

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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.