Home / 111,705.08-153,994.38-88,843.64

Finding the Fourth Proportional to 111,705.08, 153,994.38 and 88,843.64

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Solution

The fourth proportional to 111,705.08, 153,994.38 and 88,843.64 is: 122,478.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,705.08 : 153,994.38 = 88,843.64 : x
  2. Step 2: Convert to fraction form
    111,705.08/153,994.38 = 88,843.64/x
  3. Step 3: Cross multiply
    111,705.08x = 153,994.38 × 88,843.64
  4. Step 4: Simplify right side
    111,705.08x = 13,681,421,258.74
  5. Step 5: Solve for x
    x = 13,681,421,258.74/111,705.08
  6. Step 6: Final answer
    x = 122,478.06

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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.