Home / 147,911.40-221,867.10-122,979.60

Finding the Fourth Proportional to 147,911.40, 221,867.10 and 122,979.60

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Solution

The fourth proportional to 147,911.40, 221,867.10 and 122,979.60 is: 184,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,911.40 : 221,867.10 = 122,979.60 : x
  2. Step 2: Convert to fraction form
    147,911.40/221,867.10 = 122,979.60/x
  3. Step 3: Cross multiply
    147,911.40x = 221,867.10 × 122,979.60
  4. Step 4: Simplify right side
    147,911.40x = 27,285,127,211.16
  5. Step 5: Solve for x
    x = 27,285,127,211.16/147,911.40
  6. Step 6: Final answer
    x = 184,469.40

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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.