Home / 112,516.21-168,820.89-49,303.72

Finding the Fourth Proportional to 112,516.21, 168,820.89 and 49,303.72

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Solution

The fourth proportional to 112,516.21, 168,820.89 and 49,303.72 is: 73,975.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,516.21 : 168,820.89 = 49,303.72 : x
  2. Step 2: Convert to fraction form
    112,516.21/168,820.89 = 49,303.72/x
  3. Step 3: Cross multiply
    112,516.21x = 168,820.89 × 49,303.72
  4. Step 4: Simplify right side
    112,516.21x = 8,323,497,890.71
  5. Step 5: Solve for x
    x = 8,323,497,890.71/112,516.21
  6. Step 6: Final answer
    x = 73,975.99

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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.