Home / 117,918.36-162,730.44-64,205.64

Finding the Fourth Proportional to 117,918.36, 162,730.44 and 64,205.64

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Solution

The fourth proportional to 117,918.36, 162,730.44 and 64,205.64 is: 88,605.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,918.36 : 162,730.44 = 64,205.64 : x
  2. Step 2: Convert to fraction form
    117,918.36/162,730.44 = 64,205.64/x
  3. Step 3: Cross multiply
    117,918.36x = 162,730.44 × 64,205.64
  4. Step 4: Simplify right side
    117,918.36x = 10,448,212,047.68
  5. Step 5: Solve for x
    x = 10,448,212,047.68/117,918.36
  6. Step 6: Final answer
    x = 88,605.47

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1.5x scale

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.