Home / 142,069.32-213,138.60-47,299.32

Finding the Fourth Proportional to 142,069.32, 213,138.60 and 47,299.32

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Solution

The fourth proportional to 142,069.32, 213,138.60 and 47,299.32 is: 70,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,069.32 : 213,138.60 = 47,299.32 : x
  2. Step 2: Convert to fraction form
    142,069.32/213,138.60 = 47,299.32/x
  3. Step 3: Cross multiply
    142,069.32x = 213,138.60 × 47,299.32
  4. Step 4: Simplify right side
    142,069.32x = 10,081,310,845.75
  5. Step 5: Solve for x
    x = 10,081,310,845.75/142,069.32
  6. Step 6: Final answer
    x = 70,960.51

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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.