Home / 143,710.20-198,169.75-107,354.67

Finding the Fourth Proportional to 143,710.20, 198,169.75 and 107,354.67

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Solution

The fourth proportional to 143,710.20, 198,169.75 and 107,354.67 is: 148,037.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,710.20 : 198,169.75 = 107,354.67 : x
  2. Step 2: Convert to fraction form
    143,710.20/198,169.75 = 107,354.67/x
  3. Step 3: Cross multiply
    143,710.20x = 198,169.75 × 107,354.67
  4. Step 4: Simplify right side
    143,710.20x = 21,274,447,506.29
  5. Step 5: Solve for x
    x = 21,274,447,506.29/143,710.20
  6. Step 6: Final answer
    x = 148,037.14

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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.