Home / 158,990.08-219,405.44-86,392.32

Finding the Fourth Proportional to 158,990.08, 219,405.44 and 86,392.32

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Solution

The fourth proportional to 158,990.08, 219,405.44 and 86,392.32 is: 119,220.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,990.08 : 219,405.44 = 86,392.32 : x
  2. Step 2: Convert to fraction form
    158,990.08/219,405.44 = 86,392.32/x
  3. Step 3: Cross multiply
    158,990.08x = 219,405.44 × 86,392.32
  4. Step 4: Simplify right side
    158,990.08x = 18,954,944,982.22
  5. Step 5: Solve for x
    x = 18,954,944,982.22/158,990.08
  6. Step 6: Final answer
    x = 119,220.93

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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.