Home / 135,429.59-186,893.37-74,998.94

Finding the Fourth Proportional to 135,429.59, 186,893.37 and 74,998.94

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Solution

The fourth proportional to 135,429.59, 186,893.37 and 74,998.94 is: 103,498.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,429.59 : 186,893.37 = 74,998.94 : x
  2. Step 2: Convert to fraction form
    135,429.59/186,893.37 = 74,998.94/x
  3. Step 3: Cross multiply
    135,429.59x = 186,893.37 × 74,998.94
  4. Step 4: Simplify right side
    135,429.59x = 14,016,803,708.56
  5. Step 5: Solve for x
    x = 14,016,803,708.56/135,429.59
  6. Step 6: Final answer
    x = 103,498.83

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1.5x scale

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.