Home / 186,769.40-279,987.63-68,413.03

Finding the Fourth Proportional to 186,769.40, 279,987.63 and 68,413.03

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Solution

The fourth proportional to 186,769.40, 279,987.63 and 68,413.03 is: 102,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,769.40 : 279,987.63 = 68,413.03 : x
  2. Step 2: Convert to fraction form
    186,769.40/279,987.63 = 68,413.03/x
  3. Step 3: Cross multiply
    186,769.40x = 279,987.63 × 68,413.03
  4. Step 4: Simplify right side
    186,769.40x = 19,154,802,130.82
  5. Step 5: Solve for x
    x = 19,154,802,130.82/186,769.40
  6. Step 6: Final answer
    x = 102,558.57

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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.