Home / 140,852.40-194,371.92-77,189.04

Finding the Fourth Proportional to 140,852.40, 194,371.92 and 77,189.04

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Solution

The fourth proportional to 140,852.40, 194,371.92 and 77,189.04 is: 106,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,852.40 : 194,371.92 = 77,189.04 : x
  2. Step 2: Convert to fraction form
    140,852.40/194,371.92 = 77,189.04/x
  3. Step 3: Cross multiply
    140,852.40x = 194,371.92 × 77,189.04
  4. Step 4: Simplify right side
    140,852.40x = 15,003,381,907.76
  5. Step 5: Solve for x
    x = 15,003,381,907.76/140,852.40
  6. Step 6: Final answer
    x = 106,518.47

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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.