Home / 137,668.16-190,094.10-112,178.36

Finding the Fourth Proportional to 137,668.16, 190,094.10 and 112,178.36

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Solution

The fourth proportional to 137,668.16, 190,094.10 and 112,178.36 is: 154,897.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,668.16 : 190,094.10 = 112,178.36 : x
  2. Step 2: Convert to fraction form
    137,668.16/190,094.10 = 112,178.36/x
  3. Step 3: Cross multiply
    137,668.16x = 190,094.10 × 112,178.36
  4. Step 4: Simplify right side
    137,668.16x = 21,324,444,383.68
  5. Step 5: Solve for x
    x = 21,324,444,383.68/137,668.16
  6. Step 6: Final answer
    x = 154,897.43

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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.