Home / 105,654.81-158,508.14-30,775.65

Finding the Fourth Proportional to 105,654.81, 158,508.14 and 30,775.65

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Solution

The fourth proportional to 105,654.81, 158,508.14 and 30,775.65 is: 46,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,654.81 : 158,508.14 = 30,775.65 : x
  2. Step 2: Convert to fraction form
    105,654.81/158,508.14 = 30,775.65/x
  3. Step 3: Cross multiply
    105,654.81x = 158,508.14 × 30,775.65
  4. Step 4: Simplify right side
    105,654.81x = 4,878,190,463.62
  5. Step 5: Solve for x
    x = 4,878,190,463.62/105,654.81
  6. Step 6: Final answer
    x = 46,171.02

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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.