Home / 115,185.09-158,968.35-64,202.49

Finding the Fourth Proportional to 115,185.09, 158,968.35 and 64,202.49

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Solution

The fourth proportional to 115,185.09, 158,968.35 and 64,202.49 is: 88,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,185.09 : 158,968.35 = 64,202.49 : x
  2. Step 2: Convert to fraction form
    115,185.09/158,968.35 = 64,202.49/x
  3. Step 3: Cross multiply
    115,185.09x = 158,968.35 × 64,202.49
  4. Step 4: Simplify right side
    115,185.09x = 10,206,163,901.19
  5. Step 5: Solve for x
    x = 10,206,163,901.19/115,185.09
  6. Step 6: Final answer
    x = 88,606.64

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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.