Home / 105,039.36-144,928.44-64,193.04

Finding the Fourth Proportional to 105,039.36, 144,928.44 and 64,193.04

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Solution

The fourth proportional to 105,039.36, 144,928.44 and 64,193.04 is: 88,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,039.36 : 144,928.44 = 64,193.04 : x
  2. Step 2: Convert to fraction form
    105,039.36/144,928.44 = 64,193.04/x
  3. Step 3: Cross multiply
    105,039.36x = 144,928.44 × 64,193.04
  4. Step 4: Simplify right side
    105,039.36x = 9,303,397,146.06
  5. Step 5: Solve for x
    x = 9,303,397,146.06/105,039.36
  6. Step 6: Final answer
    x = 88,570.58

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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.