Home / 117,837.92-162,619.75-64,126.40

Finding the Fourth Proportional to 117,837.92, 162,619.75 and 64,126.40

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Solution

The fourth proportional to 117,837.92, 162,619.75 and 64,126.40 is: 88,496.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,837.92 : 162,619.75 = 64,126.40 : x
  2. Step 2: Convert to fraction form
    117,837.92/162,619.75 = 64,126.40/x
  3. Step 3: Cross multiply
    117,837.92x = 162,619.75 × 64,126.40
  4. Step 4: Simplify right side
    117,837.92x = 10,428,219,318.20
  5. Step 5: Solve for x
    x = 10,428,219,318.20/117,837.92
  6. Step 6: Final answer
    x = 88,496.29

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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.