Home / 103,736.81-143,155.27-58,414.88

Finding the Fourth Proportional to 103,736.81, 143,155.27 and 58,414.88

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Solution

The fourth proportional to 103,736.81, 143,155.27 and 58,414.88 is: 80,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,736.81 : 143,155.27 = 58,414.88 : x
  2. Step 2: Convert to fraction form
    103,736.81/143,155.27 = 58,414.88/x
  3. Step 3: Cross multiply
    103,736.81x = 143,155.27 × 58,414.88
  4. Step 4: Simplify right side
    103,736.81x = 8,362,397,918.42
  5. Step 5: Solve for x
    x = 8,362,397,918.42/103,736.81
  6. Step 6: Final answer
    x = 80,611.67

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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.