Home / 118,743.21-178,113.66-51,322.93

Finding the Fourth Proportional to 118,743.21, 178,113.66 and 51,322.93

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Solution

The fourth proportional to 118,743.21, 178,113.66 and 51,322.93 is: 76,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,743.21 : 178,113.66 = 51,322.93 : x
  2. Step 2: Convert to fraction form
    118,743.21/178,113.66 = 51,322.93/x
  3. Step 3: Cross multiply
    118,743.21x = 178,113.66 × 51,322.93
  4. Step 4: Simplify right side
    118,743.21x = 9,141,314,458.94
  5. Step 5: Solve for x
    x = 9,141,314,458.94/118,743.21
  6. Step 6: Final answer
    x = 76,983.89

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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.