Home / 105,105.78-157,654.26-48,926.58

Finding the Fourth Proportional to 105,105.78, 157,654.26 and 48,926.58

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Solution

The fourth proportional to 105,105.78, 157,654.26 and 48,926.58 is: 73,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,105.78 : 157,654.26 = 48,926.58 : x
  2. Step 2: Convert to fraction form
    105,105.78/157,654.26 = 48,926.58/x
  3. Step 3: Cross multiply
    105,105.78x = 157,654.26 × 48,926.58
  4. Step 4: Simplify right side
    105,105.78x = 7,713,483,764.23
  5. Step 5: Solve for x
    x = 7,713,483,764.23/105,105.78
  6. Step 6: Final answer
    x = 73,387.82

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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.