Home / 143,026.59-197,450.19-100,773.75

Finding the Fourth Proportional to 143,026.59, 197,450.19 and 100,773.75

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Solution

The fourth proportional to 143,026.59, 197,450.19 and 100,773.75 is: 139,119.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,026.59 : 197,450.19 = 100,773.75 : x
  2. Step 2: Convert to fraction form
    143,026.59/197,450.19 = 100,773.75/x
  3. Step 3: Cross multiply
    143,026.59x = 197,450.19 × 100,773.75
  4. Step 4: Simplify right side
    143,026.59x = 19,897,796,084.51
  5. Step 5: Solve for x
    x = 19,897,796,084.51/143,026.59
  6. Step 6: Final answer
    x = 139,119.56

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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.