Home / 137,807.43-190,194.89-84,123.56

Finding the Fourth Proportional to 137,807.43, 190,194.89 and 84,123.56

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Solution

The fourth proportional to 137,807.43, 190,194.89 and 84,123.56 is: 116,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,807.43 : 190,194.89 = 84,123.56 : x
  2. Step 2: Convert to fraction form
    137,807.43/190,194.89 = 84,123.56/x
  3. Step 3: Cross multiply
    137,807.43x = 190,194.89 × 84,123.56
  4. Step 4: Simplify right side
    137,807.43x = 15,999,871,295.48
  5. Step 5: Solve for x
    x = 15,999,871,295.48/137,807.43
  6. Step 6: Final answer
    x = 116,103.11

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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.