Home / 117,071.32-161,558.43-63,356.35

Finding the Fourth Proportional to 117,071.32, 161,558.43 and 63,356.35

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Solution

The fourth proportional to 117,071.32, 161,558.43 and 63,356.35 is: 87,431.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,071.32 : 161,558.43 = 63,356.35 : x
  2. Step 2: Convert to fraction form
    117,071.32/161,558.43 = 63,356.35/x
  3. Step 3: Cross multiply
    117,071.32x = 161,558.43 × 63,356.35
  4. Step 4: Simplify right side
    117,071.32x = 10,235,751,628.74
  5. Step 5: Solve for x
    x = 10,235,751,628.74/117,071.32
  6. Step 6: Final answer
    x = 87,431.76

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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.