Home / 126,516.48-189,807.60-67,303.44

Finding the Fourth Proportional to 126,516.48, 189,807.60 and 67,303.44

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Solution

The fourth proportional to 126,516.48, 189,807.60 and 67,303.44 is: 100,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,516.48 : 189,807.60 = 67,303.44 : x
  2. Step 2: Convert to fraction form
    126,516.48/189,807.60 = 67,303.44/x
  3. Step 3: Cross multiply
    126,516.48x = 189,807.60 × 67,303.44
  4. Step 4: Simplify right side
    126,516.48x = 12,774,704,418.14
  5. Step 5: Solve for x
    x = 12,774,704,418.14/126,516.48
  6. Step 6: Final answer
    x = 100,972.65

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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.