Home / 142,299.89-213,456.67-42,467.90

Finding the Fourth Proportional to 142,299.89, 213,456.67 and 42,467.90

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Solution

The fourth proportional to 142,299.89, 213,456.67 and 42,467.90 is: 63,703.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,299.89 : 213,456.67 = 42,467.90 : x
  2. Step 2: Convert to fraction form
    142,299.89/213,456.67 = 42,467.90/x
  3. Step 3: Cross multiply
    142,299.89x = 213,456.67 × 42,467.90
  4. Step 4: Simplify right side
    142,299.89x = 9,065,055,342.44
  5. Step 5: Solve for x
    x = 9,065,055,342.44/142,299.89
  6. Step 6: Final answer
    x = 63,703.88

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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.