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Finding the Fourth Proportional to 146,410.80, 219,616.20 and 87,313.20

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Solution

The fourth proportional to 146,410.80, 219,616.20 and 87,313.20 is: 130,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,410.80 : 219,616.20 = 87,313.20 : x
  2. Step 2: Convert to fraction form
    146,410.80/219,616.20 = 87,313.20/x
  3. Step 3: Cross multiply
    146,410.80x = 219,616.20 × 87,313.20
  4. Step 4: Simplify right side
    146,410.80x = 19,175,393,193.84
  5. Step 5: Solve for x
    x = 19,175,393,193.84/146,410.80
  6. Step 6: Final answer
    x = 130,969.80

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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.