Home / 107,491.90-161,308.09-40,932.68

Finding the Fourth Proportional to 107,491.90, 161,308.09 and 40,932.68

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Solution

The fourth proportional to 107,491.90, 161,308.09 and 40,932.68 is: 61,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,491.90 : 161,308.09 = 40,932.68 : x
  2. Step 2: Convert to fraction form
    107,491.90/161,308.09 = 40,932.68/x
  3. Step 3: Cross multiply
    107,491.90x = 161,308.09 × 40,932.68
  4. Step 4: Simplify right side
    107,491.90x = 6,602,772,429.38
  5. Step 5: Solve for x
    x = 6,602,772,429.38/107,491.90
  6. Step 6: Final answer
    x = 61,425.77

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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.