Home / 142,453.13-213,690.93-47,683.87

Finding the Fourth Proportional to 142,453.13, 213,690.93 and 47,683.87

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Solution

The fourth proportional to 142,453.13, 213,690.93 and 47,683.87 is: 71,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,453.13 : 213,690.93 = 47,683.87 : x
  2. Step 2: Convert to fraction form
    142,453.13/213,690.93 = 47,683.87/x
  3. Step 3: Cross multiply
    142,453.13x = 213,690.93 × 47,683.87
  4. Step 4: Simplify right side
    142,453.13x = 10,189,609,219.43
  5. Step 5: Solve for x
    x = 10,189,609,219.43/142,453.13
  6. Step 6: Final answer
    x = 71,529.56

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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.