Home / 142,034.82-213,053.88-42,192.60

Finding the Fourth Proportional to 142,034.82, 213,053.88 and 42,192.60

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Solution

The fourth proportional to 142,034.82, 213,053.88 and 42,192.60 is: 63,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,034.82 : 213,053.88 = 42,192.60 : x
  2. Step 2: Convert to fraction form
    142,034.82/213,053.88 = 42,192.60/x
  3. Step 3: Cross multiply
    142,034.82x = 213,053.88 × 42,192.60
  4. Step 4: Simplify right side
    142,034.82x = 8,989,297,137.29
  5. Step 5: Solve for x
    x = 8,989,297,137.29/142,034.82
  6. Step 6: Final answer
    x = 63,289.39

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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.