Home / 143,824.99-198,479.40-80,166.82

Finding the Fourth Proportional to 143,824.99, 198,479.40 and 80,166.82

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Solution

The fourth proportional to 143,824.99, 198,479.40 and 80,166.82 is: 110,630.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,824.99 : 198,479.40 = 80,166.82 : x
  2. Step 2: Convert to fraction form
    143,824.99/198,479.40 = 80,166.82/x
  3. Step 3: Cross multiply
    143,824.99x = 198,479.40 × 80,166.82
  4. Step 4: Simplify right side
    143,824.99x = 15,911,461,341.11
  5. Step 5: Solve for x
    x = 15,911,461,341.11/143,824.99
  6. Step 6: Final answer
    x = 110,630.72

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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.