Home / 134,806.15-186,033.14-74,376.79

Finding the Fourth Proportional to 134,806.15, 186,033.14 and 74,376.79

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Solution

The fourth proportional to 134,806.15, 186,033.14 and 74,376.79 is: 102,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,806.15 : 186,033.14 = 74,376.79 : x
  2. Step 2: Convert to fraction form
    134,806.15/186,033.14 = 74,376.79/x
  3. Step 3: Cross multiply
    134,806.15x = 186,033.14 × 74,376.79
  4. Step 4: Simplify right side
    134,806.15x = 13,836,547,786.82
  5. Step 5: Solve for x
    x = 13,836,547,786.82/134,806.15
  6. Step 6: Final answer
    x = 102,640.33

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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.