Home / 102,677.71-154,016.47-38,647.81

Finding the Fourth Proportional to 102,677.71, 154,016.47 and 38,647.81

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Solution

The fourth proportional to 102,677.71, 154,016.47 and 38,647.81 is: 57,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,677.71 : 154,016.47 = 38,647.81 : x
  2. Step 2: Convert to fraction form
    102,677.71/154,016.47 = 38,647.81/x
  3. Step 3: Cross multiply
    102,677.71x = 154,016.47 × 38,647.81
  4. Step 4: Simplify right side
    102,677.71x = 5,952,399,269.43
  5. Step 5: Solve for x
    x = 5,952,399,269.43/102,677.71
  6. Step 6: Final answer
    x = 57,971.68

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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.