Home / 137,904.54-190,328.85-84,220.44

Finding the Fourth Proportional to 137,904.54, 190,328.85 and 84,220.44

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Solution

The fourth proportional to 137,904.54, 190,328.85 and 84,220.44 is: 116,236.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,904.54 : 190,328.85 = 84,220.44 : x
  2. Step 2: Convert to fraction form
    137,904.54/190,328.85 = 84,220.44/x
  3. Step 3: Cross multiply
    137,904.54x = 190,328.85 × 84,220.44
  4. Step 4: Simplify right side
    137,904.54x = 16,029,579,491.69
  5. Step 5: Solve for x
    x = 16,029,579,491.69/137,904.54
  6. Step 6: Final answer
    x = 116,236.78

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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.