Home / 107,823.54-161,767.44-77,905.38

Finding the Fourth Proportional to 107,823.54, 161,767.44 and 77,905.38

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Solution

The fourth proportional to 107,823.54, 161,767.44 and 77,905.38 is: 116,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,823.54 : 161,767.44 = 77,905.38 : x
  2. Step 2: Convert to fraction form
    107,823.54/161,767.44 = 77,905.38/x
  3. Step 3: Cross multiply
    107,823.54x = 161,767.44 × 77,905.38
  4. Step 4: Simplify right side
    107,823.54x = 12,602,553,884.83
  5. Step 5: Solve for x
    x = 12,602,553,884.83/107,823.54
  6. Step 6: Final answer
    x = 116,881.28

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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.