Home / 143,216.96-197,645.02-97,989.80

Finding the Fourth Proportional to 143,216.96, 197,645.02 and 97,989.80

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Solution

The fourth proportional to 143,216.96, 197,645.02 and 97,989.80 is: 135,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,216.96 : 197,645.02 = 97,989.80 : x
  2. Step 2: Convert to fraction form
    143,216.96/197,645.02 = 97,989.80/x
  3. Step 3: Cross multiply
    143,216.96x = 197,645.02 × 97,989.80
  4. Step 4: Simplify right side
    143,216.96x = 19,367,195,980.80
  5. Step 5: Solve for x
    x = 19,367,195,980.80/143,216.96
  6. Step 6: Final answer
    x = 135,229.77

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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.