Home / 140,751.81-194,240.03-77,085.51

Finding the Fourth Proportional to 140,751.81, 194,240.03 and 77,085.51

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Solution

The fourth proportional to 140,751.81, 194,240.03 and 77,085.51 is: 106,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,751.81 : 194,240.03 = 77,085.51 : x
  2. Step 2: Convert to fraction form
    140,751.81/194,240.03 = 77,085.51/x
  3. Step 3: Cross multiply
    140,751.81x = 194,240.03 × 77,085.51
  4. Step 4: Simplify right side
    140,751.81x = 14,973,091,389.54
  5. Step 5: Solve for x
    x = 14,973,091,389.54/140,751.81
  6. Step 6: Final answer
    x = 106,379.39

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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.