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Finding the Third Proportional to 69,210.75 and 98,970.75

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Solution

The third proportional to 69,210.75 and 98,970.75 is: 141,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,210.75 : 98,970.75 = 98,970.75 : x
  2. Step 2: Convert to fraction form
    69,210.75/98,970.75 = 98,970.75/x
  3. Step 3: Cross multiply
    69,210.75x = 98,970.75 × 98,970.75
  4. Step 4: Simplify right side
    69,210.75x = 9,795,209,355.56
  5. Step 5: Solve for x
    x = 9,795,209,355.56/69,210.75
  6. Step 6: Final answer
    x = 141,527.28

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.