Home / 186,403.81-279,537.66-68,040.13

Finding the Fourth Proportional to 186,403.81, 279,537.66 and 68,040.13

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Solution

The fourth proportional to 186,403.81, 279,537.66 and 68,040.13 is: 102,035.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,403.81 : 279,537.66 = 68,040.13 : x
  2. Step 2: Convert to fraction form
    186,403.81/279,537.66 = 68,040.13/x
  3. Step 3: Cross multiply
    186,403.81x = 279,537.66 × 68,040.13
  4. Step 4: Simplify right side
    186,403.81x = 19,019,778,726.30
  5. Step 5: Solve for x
    x = 19,019,778,726.30/186,403.81
  6. Step 6: Final answer
    x = 102,035.35

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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.