Home / 142,285.68-213,459.30-75,716.03

Finding the Fourth Proportional to 142,285.68, 213,459.30 and 75,716.03

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Solution

The fourth proportional to 142,285.68, 213,459.30 and 75,716.03 is: 113,590.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,285.68 : 213,459.30 = 75,716.03 : x
  2. Step 2: Convert to fraction form
    142,285.68/213,459.30 = 75,716.03/x
  3. Step 3: Cross multiply
    142,285.68x = 213,459.30 × 75,716.03
  4. Step 4: Simplify right side
    142,285.68x = 16,162,291,296.23
  5. Step 5: Solve for x
    x = 16,162,291,296.23/142,285.68
  6. Step 6: Final answer
    x = 113,590.43

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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.