Home / 189,037.39-283,089.21-140,890.56

Finding the Fourth Proportional to 189,037.39, 283,089.21 and 140,890.56

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Solution

The fourth proportional to 189,037.39, 283,089.21 and 140,890.56 is: 210,987.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,037.39 : 283,089.21 = 140,890.56 : x
  2. Step 2: Convert to fraction form
    189,037.39/283,089.21 = 140,890.56/x
  3. Step 3: Cross multiply
    189,037.39x = 283,089.21 × 140,890.56
  4. Step 4: Simplify right side
    189,037.39x = 39,884,597,326.86
  5. Step 5: Solve for x
    x = 39,884,597,326.86/189,037.39
  6. Step 6: Final answer
    x = 210,987.88

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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.