Home / 142,447.02-213,519.87-53,662.14

Finding the Fourth Proportional to 142,447.02, 213,519.87 and 53,662.14

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Solution

The fourth proportional to 142,447.02, 213,519.87 and 53,662.14 is: 80,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,447.02 : 213,519.87 = 53,662.14 : x
  2. Step 2: Convert to fraction form
    142,447.02/213,519.87 = 53,662.14/x
  3. Step 3: Cross multiply
    142,447.02x = 213,519.87 × 53,662.14
  4. Step 4: Simplify right side
    142,447.02x = 11,457,933,156.72
  5. Step 5: Solve for x
    x = 11,457,933,156.72/142,447.02
  6. Step 6: Final answer
    x = 80,436.45

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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.