Home / 102,126.78-140,896.26-63,346.64

Finding the Fourth Proportional to 102,126.78, 140,896.26 and 63,346.64

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Solution

The fourth proportional to 102,126.78, 140,896.26 and 63,346.64 is: 87,394.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,126.78 : 140,896.26 = 63,346.64 : x
  2. Step 2: Convert to fraction form
    102,126.78/140,896.26 = 63,346.64/x
  3. Step 3: Cross multiply
    102,126.78x = 140,896.26 × 63,346.64
  4. Step 4: Simplify right side
    102,126.78x = 8,925,303,955.09
  5. Step 5: Solve for x
    x = 8,925,303,955.09/102,126.78
  6. Step 6: Final answer
    x = 87,394.35

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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.