Home / 137,943.63-190,356.08-80,588.27

Finding the Fourth Proportional to 137,943.63, 190,356.08 and 80,588.27

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Solution

The fourth proportional to 137,943.63, 190,356.08 and 80,588.27 is: 111,208.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,943.63 : 190,356.08 = 80,588.27 : x
  2. Step 2: Convert to fraction form
    137,943.63/190,356.08 = 80,588.27/x
  3. Step 3: Cross multiply
    137,943.63x = 190,356.08 × 80,588.27
  4. Step 4: Simplify right side
    137,943.63x = 15,340,465,816.46
  5. Step 5: Solve for x
    x = 15,340,465,816.46/137,943.63
  6. Step 6: Final answer
    x = 111,208.22

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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.