Home / 137,908.83-190,270.44-84,166.95

Finding the Fourth Proportional to 137,908.83, 190,270.44 and 84,166.95

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Solution

The fourth proportional to 137,908.83, 190,270.44 and 84,166.95 is: 116,123.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,908.83 : 190,270.44 = 84,166.95 : x
  2. Step 2: Convert to fraction form
    137,908.83/190,270.44 = 84,166.95/x
  3. Step 3: Cross multiply
    137,908.83x = 190,270.44 × 84,166.95
  4. Step 4: Simplify right side
    137,908.83x = 16,014,482,489.92
  5. Step 5: Solve for x
    x = 16,014,482,489.92/137,908.83
  6. Step 6: Final answer
    x = 116,123.69

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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.