Home / 103,067.10-154,600.65-71,574.30

Finding the Fourth Proportional to 103,067.10, 154,600.65 and 71,574.30

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Solution

The fourth proportional to 103,067.10, 154,600.65 and 71,574.30 is: 107,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,067.10 : 154,600.65 = 71,574.30 : x
  2. Step 2: Convert to fraction form
    103,067.10/154,600.65 = 71,574.30/x
  3. Step 3: Cross multiply
    103,067.10x = 154,600.65 × 71,574.30
  4. Step 4: Simplify right side
    103,067.10x = 11,065,433,303.30
  5. Step 5: Solve for x
    x = 11,065,433,303.30/103,067.10
  6. Step 6: Final answer
    x = 107,361.45

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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.