Home / 158,782.84-219,137.75-90,806.14

Finding the Fourth Proportional to 158,782.84, 219,137.75 and 90,806.14

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Solution

The fourth proportional to 158,782.84, 219,137.75 and 90,806.14 is: 125,322.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,782.84 : 219,137.75 = 90,806.14 : x
  2. Step 2: Convert to fraction form
    158,782.84/219,137.75 = 90,806.14/x
  3. Step 3: Cross multiply
    158,782.84x = 219,137.75 × 90,806.14
  4. Step 4: Simplify right side
    158,782.84x = 19,899,053,205.79
  5. Step 5: Solve for x
    x = 19,899,053,205.79/158,782.84
  6. Step 6: Final answer
    x = 125,322.44

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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.