Home / 163,081.56-225,063.98-90,508.20

Finding the Fourth Proportional to 163,081.56, 225,063.98 and 90,508.20

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Solution

The fourth proportional to 163,081.56, 225,063.98 and 90,508.20 is: 124,907.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,081.56 : 225,063.98 = 90,508.20 : x
  2. Step 2: Convert to fraction form
    163,081.56/225,063.98 = 90,508.20/x
  3. Step 3: Cross multiply
    163,081.56x = 225,063.98 × 90,508.20
  4. Step 4: Simplify right side
    163,081.56x = 20,370,135,714.64
  5. Step 5: Solve for x
    x = 20,370,135,714.64/163,081.56
  6. Step 6: Final answer
    x = 124,907.66

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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.