Home / 103,028.42-154,564.84-31,949.64

Finding the Fourth Proportional to 103,028.42, 154,564.84 and 31,949.64

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Solution

The fourth proportional to 103,028.42, 154,564.84 and 31,949.64 is: 47,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,028.42 : 154,564.84 = 31,949.64 : x
  2. Step 2: Convert to fraction form
    103,028.42/154,564.84 = 31,949.64/x
  3. Step 3: Cross multiply
    103,028.42x = 154,564.84 × 31,949.64
  4. Step 4: Simplify right side
    103,028.42x = 4,938,290,994.66
  5. Step 5: Solve for x
    x = 4,938,290,994.66/103,028.42
  6. Step 6: Final answer
    x = 47,931.35

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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.