Home / 143,140.20-214,710.30-37,969.80

Finding the Fourth Proportional to 143,140.20, 214,710.30 and 37,969.80

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Solution

The fourth proportional to 143,140.20, 214,710.30 and 37,969.80 is: 56,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,140.20 : 214,710.30 = 37,969.80 : x
  2. Step 2: Convert to fraction form
    143,140.20/214,710.30 = 37,969.80/x
  3. Step 3: Cross multiply
    143,140.20x = 214,710.30 × 37,969.80
  4. Step 4: Simplify right side
    143,140.20x = 8,152,507,148.94
  5. Step 5: Solve for x
    x = 8,152,507,148.94/143,140.20
  6. Step 6: Final answer
    x = 56,954.70

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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.