Home / 117,071.07-161,558.09-63,356.10

Finding the Fourth Proportional to 117,071.07, 161,558.09 and 63,356.10

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Solution

The fourth proportional to 117,071.07, 161,558.09 and 63,356.10 is: 87,431.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,071.07 : 161,558.09 = 63,356.10 : x
  2. Step 2: Convert to fraction form
    117,071.07/161,558.09 = 63,356.10/x
  3. Step 3: Cross multiply
    117,071.07x = 161,558.09 × 63,356.10
  4. Step 4: Simplify right side
    117,071.07x = 10,235,689,381.28
  5. Step 5: Solve for x
    x = 10,235,689,381.28/117,071.07
  6. Step 6: Final answer
    x = 87,431.42

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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.