Home / 135,069.77-186,391.26-74,639.16

Finding the Fourth Proportional to 135,069.77, 186,391.26 and 74,639.16

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Solution

The fourth proportional to 135,069.77, 186,391.26 and 74,639.16 is: 102,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,069.77 : 186,391.26 = 74,639.16 : x
  2. Step 2: Convert to fraction form
    135,069.77/186,391.26 = 74,639.16/x
  3. Step 3: Cross multiply
    135,069.77x = 186,391.26 × 74,639.16
  4. Step 4: Simplify right side
    135,069.77x = 13,912,087,077.74
  5. Step 5: Solve for x
    x = 13,912,087,077.74/135,069.77
  6. Step 6: Final answer
    x = 102,999.27

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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.