Home / 142,115.85-213,136.65-42,249.15

Finding the Fourth Proportional to 142,115.85, 213,136.65 and 42,249.15

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Solution

The fourth proportional to 142,115.85, 213,136.65 and 42,249.15 is: 63,362.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,115.85 : 213,136.65 = 42,249.15 : x
  2. Step 2: Convert to fraction form
    142,115.85/213,136.65 = 42,249.15/x
  3. Step 3: Cross multiply
    142,115.85x = 213,136.65 × 42,249.15
  4. Step 4: Simplify right side
    142,115.85x = 9,004,842,296.35
  5. Step 5: Solve for x
    x = 9,004,842,296.35/142,115.85
  6. Step 6: Final answer
    x = 63,362.69

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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.