Home / 143,145.90-214,281.45-111,653.10

Finding the Fourth Proportional to 143,145.90, 214,281.45 and 111,653.10

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Solution

The fourth proportional to 143,145.90, 214,281.45 and 111,653.10 is: 167,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,145.90 : 214,281.45 = 111,653.10 : x
  2. Step 2: Convert to fraction form
    143,145.90/214,281.45 = 111,653.10/x
  3. Step 3: Cross multiply
    143,145.90x = 214,281.45 × 111,653.10
  4. Step 4: Simplify right side
    143,145.90x = 23,925,188,165.00
  5. Step 5: Solve for x
    x = 23,925,188,165.00/143,145.90
  6. Step 6: Final answer
    x = 167,138.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.