Home / 136,585.80-188,474.61-76,150.77

Finding the Fourth Proportional to 136,585.80, 188,474.61 and 76,150.77

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Solution

The fourth proportional to 136,585.80, 188,474.61 and 76,150.77 is: 105,080.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,585.80 : 188,474.61 = 76,150.77 : x
  2. Step 2: Convert to fraction form
    136,585.80/188,474.61 = 76,150.77/x
  3. Step 3: Cross multiply
    136,585.80x = 188,474.61 × 76,150.77
  4. Step 4: Simplify right side
    136,585.80x = 14,352,486,676.95
  5. Step 5: Solve for x
    x = 14,352,486,676.95/136,585.80
  6. Step 6: Final answer
    x = 105,080.37

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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.