Home / 106,854.19-147,397.20-68,020.20

Finding the Fourth Proportional to 106,854.19, 147,397.20 and 68,020.20

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Solution

The fourth proportional to 106,854.19, 147,397.20 and 68,020.20 is: 93,828.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,854.19 : 147,397.20 = 68,020.20 : x
  2. Step 2: Convert to fraction form
    106,854.19/147,397.20 = 68,020.20/x
  3. Step 3: Cross multiply
    106,854.19x = 147,397.20 × 68,020.20
  4. Step 4: Simplify right side
    106,854.19x = 10,025,987,023.44
  5. Step 5: Solve for x
    x = 10,025,987,023.44/106,854.19
  6. Step 6: Final answer
    x = 93,828.67

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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.