Home / 142,532.86-213,733.41-80,203.36

Finding the Fourth Proportional to 142,532.86, 213,733.41 and 80,203.36

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Solution

The fourth proportional to 142,532.86, 213,733.41 and 80,203.36 is: 120,267.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,532.86 : 213,733.41 = 80,203.36 : x
  2. Step 2: Convert to fraction form
    142,532.86/213,733.41 = 80,203.36/x
  3. Step 3: Cross multiply
    142,532.86x = 213,733.41 × 80,203.36
  4. Step 4: Simplify right side
    142,532.86x = 17,142,137,626.26
  5. Step 5: Solve for x
    x = 17,142,137,626.26/142,532.86
  6. Step 6: Final answer
    x = 120,267.97

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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.