Home / 103,210.12-154,837.05-33,138.64

Finding the Fourth Proportional to 103,210.12, 154,837.05 and 33,138.64

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Solution

The fourth proportional to 103,210.12, 154,837.05 and 33,138.64 is: 49,714.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,210.12 : 154,837.05 = 33,138.64 : x
  2. Step 2: Convert to fraction form
    103,210.12/154,837.05 = 33,138.64/x
  3. Step 3: Cross multiply
    103,210.12x = 154,837.05 × 33,138.64
  4. Step 4: Simplify right side
    103,210.12x = 5,131,089,258.61
  5. Step 5: Solve for x
    x = 5,131,089,258.61/103,210.12
  6. Step 6: Final answer
    x = 49,714.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.