Home / 135,166.34-186,513.26-74,728.82

Finding the Fourth Proportional to 135,166.34, 186,513.26 and 74,728.82

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Solution

The fourth proportional to 135,166.34, 186,513.26 and 74,728.82 is: 103,116.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,166.34 : 186,513.26 = 74,728.82 : x
  2. Step 2: Convert to fraction form
    135,166.34/186,513.26 = 74,728.82/x
  3. Step 3: Cross multiply
    135,166.34x = 186,513.26 × 74,728.82
  4. Step 4: Simplify right side
    135,166.34x = 13,937,915,834.15
  5. Step 5: Solve for x
    x = 13,937,915,834.15/135,166.34
  6. Step 6: Final answer
    x = 103,116.77

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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.