Home / 138,325.52-190,838.76-84,584.72

Finding the Fourth Proportional to 138,325.52, 190,838.76 and 84,584.72

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Solution

The fourth proportional to 138,325.52, 190,838.76 and 84,584.72 is: 116,696.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,325.52 : 190,838.76 = 84,584.72 : x
  2. Step 2: Convert to fraction form
    138,325.52/190,838.76 = 84,584.72/x
  3. Step 3: Cross multiply
    138,325.52x = 190,838.76 × 84,584.72
  4. Step 4: Simplify right side
    138,325.52x = 16,142,043,079.75
  5. Step 5: Solve for x
    x = 16,142,043,079.75/138,325.52
  6. Step 6: Final answer
    x = 116,696.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.