Home / 146,427.20-219,640.80-84,046.40

Finding the Fourth Proportional to 146,427.20, 219,640.80 and 84,046.40

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Solution

The fourth proportional to 146,427.20, 219,640.80 and 84,046.40 is: 126,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,427.20 : 219,640.80 = 84,046.40 : x
  2. Step 2: Convert to fraction form
    146,427.20/219,640.80 = 84,046.40/x
  3. Step 3: Cross multiply
    146,427.20x = 219,640.80 × 84,046.40
  4. Step 4: Simplify right side
    146,427.20x = 18,460,018,533.12
  5. Step 5: Solve for x
    x = 18,460,018,533.12/146,427.20
  6. Step 6: Final answer
    x = 126,069.60

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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.