Home / 154,860.37-213,782.40-103,854.52

Finding the Fourth Proportional to 154,860.37, 213,782.40 and 103,854.52

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Solution

The fourth proportional to 154,860.37, 213,782.40 and 103,854.52 is: 143,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,860.37 : 213,782.40 = 103,854.52 : x
  2. Step 2: Convert to fraction form
    154,860.37/213,782.40 = 103,854.52/x
  3. Step 3: Cross multiply
    154,860.37x = 213,782.40 × 103,854.52
  4. Step 4: Simplify right side
    154,860.37x = 22,202,268,536.45
  5. Step 5: Solve for x
    x = 22,202,268,536.45/154,860.37
  6. Step 6: Final answer
    x = 143,369.60

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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.