Home / 143,819.41-215,682.16-47,730.81

Finding the Fourth Proportional to 143,819.41, 215,682.16 and 47,730.81

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Solution

The fourth proportional to 143,819.41, 215,682.16 and 47,730.81 is: 71,580.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,819.41 : 215,682.16 = 47,730.81 : x
  2. Step 2: Convert to fraction form
    143,819.41/215,682.16 = 47,730.81/x
  3. Step 3: Cross multiply
    143,819.41x = 215,682.16 × 47,730.81
  4. Step 4: Simplify right side
    143,819.41x = 10,294,684,199.35
  5. Step 5: Solve for x
    x = 10,294,684,199.35/143,819.41
  6. Step 6: Final answer
    x = 71,580.63

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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.