Home / 142,564.60-196,733.10-78,896.44

Finding the Fourth Proportional to 142,564.60, 196,733.10 and 78,896.44

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Solution

The fourth proportional to 142,564.60, 196,733.10 and 78,896.44 is: 108,873.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,564.60 : 196,733.10 = 78,896.44 : x
  2. Step 2: Convert to fraction form
    142,564.60/196,733.10 = 78,896.44/x
  3. Step 3: Cross multiply
    142,564.60x = 196,733.10 × 78,896.44
  4. Step 4: Simplify right side
    142,564.60x = 15,521,541,220.16
  5. Step 5: Solve for x
    x = 15,521,541,220.16/142,564.60
  6. Step 6: Final answer
    x = 108,873.74

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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.