Home / 143,557.32-198,094.40-83,147.60

Finding the Fourth Proportional to 143,557.32, 198,094.40 and 83,147.60

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Solution

The fourth proportional to 143,557.32, 198,094.40 and 83,147.60 is: 114,735.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,557.32 : 198,094.40 = 83,147.60 : x
  2. Step 2: Convert to fraction form
    143,557.32/198,094.40 = 83,147.60/x
  3. Step 3: Cross multiply
    143,557.32x = 198,094.40 × 83,147.60
  4. Step 4: Simplify right side
    143,557.32x = 16,471,073,933.44
  5. Step 5: Solve for x
    x = 16,471,073,933.44/143,557.32
  6. Step 6: Final answer
    x = 114,735.17

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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.