Home / 148,980.03-205,391.21-101,150.35

Finding the Fourth Proportional to 148,980.03, 205,391.21 and 101,150.35

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Solution

The fourth proportional to 148,980.03, 205,391.21 and 101,150.35 is: 139,450.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,980.03 : 205,391.21 = 101,150.35 : x
  2. Step 2: Convert to fraction form
    148,980.03/205,391.21 = 101,150.35/x
  3. Step 3: Cross multiply
    148,980.03x = 205,391.21 × 101,150.35
  4. Step 4: Simplify right side
    148,980.03x = 20,775,392,778.42
  5. Step 5: Solve for x
    x = 20,775,392,778.42/148,980.03
  6. Step 6: Final answer
    x = 139,450.86

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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.