Home / 104,289.84-143,918.64-56,543.04

Finding the Fourth Proportional to 104,289.84, 143,918.64 and 56,543.04

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Solution

The fourth proportional to 104,289.84, 143,918.64 and 56,543.04 is: 78,028.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,289.84 : 143,918.64 = 56,543.04 : x
  2. Step 2: Convert to fraction form
    104,289.84/143,918.64 = 56,543.04/x
  3. Step 3: Cross multiply
    104,289.84x = 143,918.64 × 56,543.04
  4. Step 4: Simplify right side
    104,289.84x = 8,137,597,418.27
  5. Step 5: Solve for x
    x = 8,137,597,418.27/104,289.84
  6. Step 6: Final answer
    x = 78,028.67

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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.