Home / 147,912.20-221,868.30-122,980.40

Finding the Fourth Proportional to 147,912.20, 221,868.30 and 122,980.40

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Solution

The fourth proportional to 147,912.20, 221,868.30 and 122,980.40 is: 184,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,912.20 : 221,868.30 = 122,980.40 : x
  2. Step 2: Convert to fraction form
    147,912.20/221,868.30 = 122,980.40/x
  3. Step 3: Cross multiply
    147,912.20x = 221,868.30 × 122,980.40
  4. Step 4: Simplify right side
    147,912.20x = 27,285,452,281.32
  5. Step 5: Solve for x
    x = 27,285,452,281.32/147,912.20
  6. Step 6: Final answer
    x = 184,470.60

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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.