Home / 136,280.21-188,072.15-75,853.40

Finding the Fourth Proportional to 136,280.21, 188,072.15 and 75,853.40

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Solution

The fourth proportional to 136,280.21, 188,072.15 and 75,853.40 is: 104,680.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,280.21 : 188,072.15 = 75,853.40 : x
  2. Step 2: Convert to fraction form
    136,280.21/188,072.15 = 75,853.40/x
  3. Step 3: Cross multiply
    136,280.21x = 188,072.15 × 75,853.40
  4. Step 4: Simplify right side
    136,280.21x = 14,265,910,703.18
  5. Step 5: Solve for x
    x = 14,265,910,703.18/136,280.21
  6. Step 6: Final answer
    x = 104,680.73

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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.