Home / 118,633.09-163,716.29-64,918.08

Finding the Fourth Proportional to 118,633.09, 163,716.29 and 64,918.08

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Solution

The fourth proportional to 118,633.09, 163,716.29 and 64,918.08 is: 89,588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,633.09 : 163,716.29 = 64,918.08 : x
  2. Step 2: Convert to fraction form
    118,633.09/163,716.29 = 64,918.08/x
  3. Step 3: Cross multiply
    118,633.09x = 163,716.29 × 64,918.08
  4. Step 4: Simplify right side
    118,633.09x = 10,628,147,211.52
  5. Step 5: Solve for x
    x = 10,628,147,211.52/118,633.09
  6. Step 6: Final answer
    x = 89,588.39

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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.