Home / 146,945.60-220,418.40-76,846.40

Finding the Fourth Proportional to 146,945.60, 220,418.40 and 76,846.40

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Solution

The fourth proportional to 146,945.60, 220,418.40 and 76,846.40 is: 115,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,945.60 : 220,418.40 = 76,846.40 : x
  2. Step 2: Convert to fraction form
    146,945.60/220,418.40 = 76,846.40/x
  3. Step 3: Cross multiply
    146,945.60x = 220,418.40 × 76,846.40
  4. Step 4: Simplify right side
    146,945.60x = 16,938,360,533.76
  5. Step 5: Solve for x
    x = 16,938,360,533.76/146,945.60
  6. Step 6: Final answer
    x = 115,269.60

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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.