Home / 143,358.72-214,675.20-105,930.24

Finding the Fourth Proportional to 143,358.72, 214,675.20 and 105,930.24

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Solution

The fourth proportional to 143,358.72, 214,675.20 and 105,930.24 is: 158,627.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,358.72 : 214,675.20 = 105,930.24 : x
  2. Step 2: Convert to fraction form
    143,358.72/214,675.20 = 105,930.24/x
  3. Step 3: Cross multiply
    143,358.72x = 214,675.20 × 105,930.24
  4. Step 4: Simplify right side
    143,358.72x = 22,740,595,458.05
  5. Step 5: Solve for x
    x = 22,740,595,458.05/143,358.72
  6. Step 6: Final answer
    x = 158,627.22

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1.5x scale

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.