Home / 144,015.98-198,816.81-105,210.26

Finding the Fourth Proportional to 144,015.98, 198,816.81 and 105,210.26

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Solution

The fourth proportional to 144,015.98, 198,816.81 and 105,210.26 is: 145,244.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,015.98 : 198,816.81 = 105,210.26 : x
  2. Step 2: Convert to fraction form
    144,015.98/198,816.81 = 105,210.26/x
  3. Step 3: Cross multiply
    144,015.98x = 198,816.81 × 105,210.26
  4. Step 4: Simplify right side
    144,015.98x = 20,917,567,629.41
  5. Step 5: Solve for x
    x = 20,917,567,629.41/144,015.98
  6. Step 6: Final answer
    x = 145,244.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.