Home / 143,845.37-198,425.32-90,036.96

Finding the Fourth Proportional to 143,845.37, 198,425.32 and 90,036.96

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Solution

The fourth proportional to 143,845.37, 198,425.32 and 90,036.96 is: 124,200.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,845.37 : 198,425.32 = 90,036.96 : x
  2. Step 2: Convert to fraction form
    143,845.37/198,425.32 = 90,036.96/x
  3. Step 3: Cross multiply
    143,845.37x = 198,425.32 × 90,036.96
  4. Step 4: Simplify right side
    143,845.37x = 17,865,612,599.83
  5. Step 5: Solve for x
    x = 17,865,612,599.83/143,845.37
  6. Step 6: Final answer
    x = 124,200.12

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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.