Home / 104,122.47-143,688.35-56,375.67

Finding the Fourth Proportional to 104,122.47, 143,688.35 and 56,375.67

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Solution

The fourth proportional to 104,122.47, 143,688.35 and 56,375.67 is: 77,798.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,122.47 : 143,688.35 = 56,375.67 : x
  2. Step 2: Convert to fraction form
    104,122.47/143,688.35 = 56,375.67/x
  3. Step 3: Cross multiply
    104,122.47x = 143,688.35 × 56,375.67
  4. Step 4: Simplify right side
    104,122.47x = 8,100,526,720.57
  5. Step 5: Solve for x
    x = 8,100,526,720.57/104,122.47
  6. Step 6: Final answer
    x = 77,798.07

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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.