Home / 166,074.88-249,216-121,012.48

Finding the Fourth Proportional to 166,074.88, 249,216 and 121,012.48

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Solution

The fourth proportional to 166,074.88, 249,216 and 121,012.48 is: 181,594.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,074.88 : 249,216 = 121,012.48 : x
  2. Step 2: Convert to fraction form
    166,074.88/249,216 = 121,012.48/x
  3. Step 3: Cross multiply
    166,074.88x = 249,216 × 121,012.48
  4. Step 4: Simplify right side
    166,074.88x = 30,158,246,215.68
  5. Step 5: Solve for x
    x = 30,158,246,215.68/166,074.88
  6. Step 6: Final answer
    x = 181,594.27

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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.