Home / 158,815.22-219,102.49-90,795.65

Finding the Fourth Proportional to 158,815.22, 219,102.49 and 90,795.65

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Solution

The fourth proportional to 158,815.22, 219,102.49 and 90,795.65 is: 125,262.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,815.22 : 219,102.49 = 90,795.65 : x
  2. Step 2: Convert to fraction form
    158,815.22/219,102.49 = 90,795.65/x
  3. Step 3: Cross multiply
    158,815.22x = 219,102.49 × 90,795.65
  4. Step 4: Simplify right side
    158,815.22x = 19,893,552,675.40
  5. Step 5: Solve for x
    x = 19,893,552,675.40/158,815.22
  6. Step 6: Final answer
    x = 125,262.26

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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.