Home / 166,636.40-229,719-118,806.72

Finding the Fourth Proportional to 166,636.40, 229,719 and 118,806.72

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Solution

The fourth proportional to 166,636.40, 229,719 and 118,806.72 is: 163,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,636.40 : 229,719 = 118,806.72 : x
  2. Step 2: Convert to fraction form
    166,636.40/229,719 = 118,806.72/x
  3. Step 3: Cross multiply
    166,636.40x = 229,719 × 118,806.72
  4. Step 4: Simplify right side
    166,636.40x = 27,292,160,911.68
  5. Step 5: Solve for x
    x = 27,292,160,911.68/166,636.40
  6. Step 6: Final answer
    x = 163,782.71

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1.5x scale

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.