Home / 135,376.69-186,812.71-74,111.14

Finding the Fourth Proportional to 135,376.69, 186,812.71 and 74,111.14

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Solution

The fourth proportional to 135,376.69, 186,812.71 and 74,111.14 is: 102,269.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,376.69 : 186,812.71 = 74,111.14 : x
  2. Step 2: Convert to fraction form
    135,376.69/186,812.71 = 74,111.14/x
  3. Step 3: Cross multiply
    135,376.69x = 186,812.71 × 74,111.14
  4. Step 4: Simplify right side
    135,376.69x = 13,844,902,125.09
  5. Step 5: Solve for x
    x = 13,844,902,125.09/135,376.69
  6. Step 6: Final answer
    x = 102,269.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.