Home / 142,362.28-213,471.30-47,558.68

Finding the Fourth Proportional to 142,362.28, 213,471.30 and 47,558.68

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Solution

The fourth proportional to 142,362.28, 213,471.30 and 47,558.68 is: 71,313.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,362.28 : 213,471.30 = 47,558.68 : x
  2. Step 2: Convert to fraction form
    142,362.28/213,471.30 = 47,558.68/x
  3. Step 3: Cross multiply
    142,362.28x = 213,471.30 × 47,558.68
  4. Step 4: Simplify right side
    142,362.28x = 10,152,413,245.88
  5. Step 5: Solve for x
    x = 10,152,413,245.88/142,362.28
  6. Step 6: Final answer
    x = 71,313.93

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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.