Home / 135,414.99-186,870.39-74,984.34

Finding the Fourth Proportional to 135,414.99, 186,870.39 and 74,984.34

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Solution

The fourth proportional to 135,414.99, 186,870.39 and 74,984.34 is: 103,477.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,414.99 : 186,870.39 = 74,984.34 : x
  2. Step 2: Convert to fraction form
    135,414.99/186,870.39 = 74,984.34/x
  3. Step 3: Cross multiply
    135,414.99x = 186,870.39 × 74,984.34
  4. Step 4: Simplify right side
    135,414.99x = 14,012,352,392.52
  5. Step 5: Solve for x
    x = 14,012,352,392.52/135,414.99
  6. Step 6: Final answer
    x = 103,477.12

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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.