Home / 143,741.32-198,435.36-111,403.96

Finding the Fourth Proportional to 143,741.32, 198,435.36 and 111,403.96

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Solution

The fourth proportional to 143,741.32, 198,435.36 and 111,403.96 is: 153,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,741.32 : 198,435.36 = 111,403.96 : x
  2. Step 2: Convert to fraction form
    143,741.32/198,435.36 = 111,403.96/x
  3. Step 3: Cross multiply
    143,741.32x = 198,435.36 × 111,403.96
  4. Step 4: Simplify right side
    143,741.32x = 22,106,484,908.03
  5. Step 5: Solve for x
    x = 22,106,484,908.03/143,741.32
  6. Step 6: Final answer
    x = 153,793.53

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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.