Home / 143,140.20-214,710.30-73,156.20

Finding the Fourth Proportional to 143,140.20, 214,710.30 and 73,156.20

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Solution

The fourth proportional to 143,140.20, 214,710.30 and 73,156.20 is: 109,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,140.20 : 214,710.30 = 73,156.20 : x
  2. Step 2: Convert to fraction form
    143,140.20/214,710.30 = 73,156.20/x
  3. Step 3: Cross multiply
    143,140.20x = 214,710.30 × 73,156.20
  4. Step 4: Simplify right side
    143,140.20x = 15,707,389,648.86
  5. Step 5: Solve for x
    x = 15,707,389,648.86/143,140.20
  6. Step 6: Final answer
    x = 109,734.30

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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.