Home / 189,281.41-283,961.30-76,961.64

Finding the Fourth Proportional to 189,281.41, 283,961.30 and 76,961.64

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Solution

The fourth proportional to 189,281.41, 283,961.30 and 76,961.64 is: 115,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,281.41 : 283,961.30 = 76,961.64 : x
  2. Step 2: Convert to fraction form
    189,281.41/283,961.30 = 76,961.64/x
  3. Step 3: Cross multiply
    189,281.41x = 283,961.30 × 76,961.64
  4. Step 4: Simplify right side
    189,281.41x = 21,854,128,024.58
  5. Step 5: Solve for x
    x = 21,854,128,024.58/189,281.41
  6. Step 6: Final answer
    x = 115,458.40

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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.