Home / 143,688.74-198,296.58-80,026.53

Finding the Fourth Proportional to 143,688.74, 198,296.58 and 80,026.53

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Solution

The fourth proportional to 143,688.74, 198,296.58 and 80,026.53 is: 110,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,688.74 : 198,296.58 = 80,026.53 : x
  2. Step 2: Convert to fraction form
    143,688.74/198,296.58 = 80,026.53/x
  3. Step 3: Cross multiply
    143,688.74x = 198,296.58 × 80,026.53
  4. Step 4: Simplify right side
    143,688.74x = 15,868,987,208.27
  5. Step 5: Solve for x
    x = 15,868,987,208.27/143,688.74
  6. Step 6: Final answer
    x = 110,440.02

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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.