Home / 112,140.40-168,020.19-67,673.72

Finding the Fourth Proportional to 112,140.40, 168,020.19 and 67,673.72

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Solution

The fourth proportional to 112,140.40, 168,020.19 and 67,673.72 is: 101,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,140.40 : 168,020.19 = 67,673.72 : x
  2. Step 2: Convert to fraction form
    112,140.40/168,020.19 = 67,673.72/x
  3. Step 3: Cross multiply
    112,140.40x = 168,020.19 × 67,673.72
  4. Step 4: Simplify right side
    112,140.40x = 11,370,551,292.41
  5. Step 5: Solve for x
    x = 11,370,551,292.41/112,140.40
  6. Step 6: Final answer
    x = 101,395.67

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1.5x scale

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.