Home / 142,143.24-213,213.81-57,883.60

Finding the Fourth Proportional to 142,143.24, 213,213.81 and 57,883.60

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Solution

The fourth proportional to 142,143.24, 213,213.81 and 57,883.60 is: 86,824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,143.24 : 213,213.81 = 57,883.60 : x
  2. Step 2: Convert to fraction form
    142,143.24/213,213.81 = 57,883.60/x
  3. Step 3: Cross multiply
    142,143.24x = 213,213.81 × 57,883.60
  4. Step 4: Simplify right side
    142,143.24x = 12,341,582,892.52
  5. Step 5: Solve for x
    x = 12,341,582,892.52/142,143.24
  6. Step 6: Final answer
    x = 86,824.97

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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.