Home / 142,538.60-213,586.16-53,743.56

Finding the Fourth Proportional to 142,538.60, 213,586.16 and 53,743.56

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Solution

The fourth proportional to 142,538.60, 213,586.16 and 53,743.56 is: 80,531.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,538.60 : 213,586.16 = 53,743.56 : x
  2. Step 2: Convert to fraction form
    142,538.60/213,586.16 = 53,743.56/x
  3. Step 3: Cross multiply
    142,538.60x = 213,586.16 × 53,743.56
  4. Step 4: Simplify right side
    142,538.60x = 11,478,880,336.41
  5. Step 5: Solve for x
    x = 11,478,880,336.41/142,538.60
  6. Step 6: Final answer
    x = 80,531.73

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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.