Home / 148,963.60-223,445.40-78,979.60

Finding the Fourth Proportional to 148,963.60, 223,445.40 and 78,979.60

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Solution

The fourth proportional to 148,963.60, 223,445.40 and 78,979.60 is: 118,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,963.60 : 223,445.40 = 78,979.60 : x
  2. Step 2: Convert to fraction form
    148,963.60/223,445.40 = 78,979.60/x
  3. Step 3: Cross multiply
    148,963.60x = 223,445.40 × 78,979.60
  4. Step 4: Simplify right side
    148,963.60x = 17,647,628,313.84
  5. Step 5: Solve for x
    x = 17,647,628,313.84/148,963.60
  6. Step 6: Final answer
    x = 118,469.40

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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.