Home / 137,936.94-190,370.57-84,210.45

Finding the Fourth Proportional to 137,936.94, 190,370.57 and 84,210.45

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Solution

The fourth proportional to 137,936.94, 190,370.57 and 84,210.45 is: 116,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,936.94 : 190,370.57 = 84,210.45 : x
  2. Step 2: Convert to fraction form
    137,936.94/190,370.57 = 84,210.45/x
  3. Step 3: Cross multiply
    137,936.94x = 190,370.57 × 84,210.45
  4. Step 4: Simplify right side
    137,936.94x = 16,031,190,945.40
  5. Step 5: Solve for x
    x = 16,031,190,945.40/137,936.94
  6. Step 6: Final answer
    x = 116,221.16

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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.