Home / 136,397.98-188,235.05-75,968.63

Finding the Fourth Proportional to 136,397.98, 188,235.05 and 75,968.63

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Solution

The fourth proportional to 136,397.98, 188,235.05 and 75,968.63 is: 104,839.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,397.98 : 188,235.05 = 75,968.63 : x
  2. Step 2: Convert to fraction form
    136,397.98/188,235.05 = 75,968.63/x
  3. Step 3: Cross multiply
    136,397.98x = 188,235.05 × 75,968.63
  4. Step 4: Simplify right side
    136,397.98x = 14,299,959,523.83
  5. Step 5: Solve for x
    x = 14,299,959,523.83/136,397.98
  6. Step 6: Final answer
    x = 104,839.97

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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.