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Finding the Fourth Proportional to 146,970.10, 220,127.10 and 113,581.90

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Solution

The fourth proportional to 146,970.10, 220,127.10 and 113,581.90 is: 170,119.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,970.10 : 220,127.10 = 113,581.90 : x
  2. Step 2: Convert to fraction form
    146,970.10/220,127.10 = 113,581.90/x
  3. Step 3: Cross multiply
    146,970.10x = 220,127.10 × 113,581.90
  4. Step 4: Simplify right side
    146,970.10x = 25,002,454,259.49
  5. Step 5: Solve for x
    x = 25,002,454,259.49/146,970.10
  6. Step 6: Final answer
    x = 170,119.33

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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.