Home / 136,908.35-205,368.21-47,012.84

Finding the Fourth Proportional to 136,908.35, 205,368.21 and 47,012.84

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Solution

The fourth proportional to 136,908.35, 205,368.21 and 47,012.84 is: 70,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,908.35 : 205,368.21 = 47,012.84 : x
  2. Step 2: Convert to fraction form
    136,908.35/205,368.21 = 47,012.84/x
  3. Step 3: Cross multiply
    136,908.35x = 205,368.21 × 47,012.84
  4. Step 4: Simplify right side
    136,908.35x = 9,654,941,770.98
  5. Step 5: Solve for x
    x = 9,654,941,770.98/136,908.35
  6. Step 6: Final answer
    x = 70,521.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.