Home / 143,544.86-198,079.02-83,119.60

Finding the Fourth Proportional to 143,544.86, 198,079.02 and 83,119.60

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Solution

The fourth proportional to 143,544.86, 198,079.02 and 83,119.60 is: 114,697.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,544.86 : 198,079.02 = 83,119.60 : x
  2. Step 2: Convert to fraction form
    143,544.86/198,079.02 = 83,119.60/x
  3. Step 3: Cross multiply
    143,544.86x = 198,079.02 × 83,119.60
  4. Step 4: Simplify right side
    143,544.86x = 16,464,248,910.79
  5. Step 5: Solve for x
    x = 16,464,248,910.79/143,544.86
  6. Step 6: Final answer
    x = 114,697.59

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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.