Home / 189,021.12-283,587.12-55,904.88

Finding the Fourth Proportional to 189,021.12, 283,587.12 and 55,904.88

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Solution

The fourth proportional to 189,021.12, 283,587.12 and 55,904.88 is: 83,873.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,021.12 : 283,587.12 = 55,904.88 : x
  2. Step 2: Convert to fraction form
    189,021.12/283,587.12 = 55,904.88/x
  3. Step 3: Cross multiply
    189,021.12x = 283,587.12 × 55,904.88
  4. Step 4: Simplify right side
    189,021.12x = 15,853,903,913.15
  5. Step 5: Solve for x
    x = 15,853,903,913.15/189,021.12
  6. Step 6: Final answer
    x = 83,873.72

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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.