Home / 140,985.36-194,371.38-112,009.77

Finding the Fourth Proportional to 140,985.36, 194,371.38 and 112,009.77

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Solution

The fourth proportional to 140,985.36, 194,371.38 and 112,009.77 is: 154,423.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,985.36 : 194,371.38 = 112,009.77 : x
  2. Step 2: Convert to fraction form
    140,985.36/194,371.38 = 112,009.77/x
  3. Step 3: Cross multiply
    140,985.36x = 194,371.38 × 112,009.77
  4. Step 4: Simplify right side
    140,985.36x = 21,771,493,568.38
  5. Step 5: Solve for x
    x = 21,771,493,568.38/140,985.36
  6. Step 6: Final answer
    x = 154,423.79

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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.