Home / 140,603.23-194,031.61-76,072.25

Finding the Fourth Proportional to 140,603.23, 194,031.61 and 76,072.25

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Solution

The fourth proportional to 140,603.23, 194,031.61 and 76,072.25 is: 104,979.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,603.23 : 194,031.61 = 76,072.25 : x
  2. Step 2: Convert to fraction form
    140,603.23/194,031.61 = 76,072.25/x
  3. Step 3: Cross multiply
    140,603.23x = 194,031.61 × 76,072.25
  4. Step 4: Simplify right side
    140,603.23x = 14,760,421,143.82
  5. Step 5: Solve for x
    x = 14,760,421,143.82/140,603.23
  6. Step 6: Final answer
    x = 104,979.25

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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.