Home / 143,225.01-197,651.87-78,695.60

Finding the Fourth Proportional to 143,225.01, 197,651.87 and 78,695.60

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Solution

The fourth proportional to 143,225.01, 197,651.87 and 78,695.60 is: 108,600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,225.01 : 197,651.87 = 78,695.60 : x
  2. Step 2: Convert to fraction form
    143,225.01/197,651.87 = 78,695.60/x
  3. Step 3: Cross multiply
    143,225.01x = 197,651.87 × 78,695.60
  4. Step 4: Simplify right side
    143,225.01x = 15,554,331,119.03
  5. Step 5: Solve for x
    x = 15,554,331,119.03/143,225.01
  6. Step 6: Final answer
    x = 108,600.66

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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.