Home / 147,709.56-203,827.68-87,268.74

Finding the Fourth Proportional to 147,709.56, 203,827.68 and 87,268.74

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Solution

The fourth proportional to 147,709.56, 203,827.68 and 87,268.74 is: 120,424.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,709.56 : 203,827.68 = 87,268.74 : x
  2. Step 2: Convert to fraction form
    147,709.56/203,827.68 = 87,268.74/x
  3. Step 3: Cross multiply
    147,709.56x = 203,827.68 × 87,268.74
  4. Step 4: Simplify right side
    147,709.56x = 17,787,784,810.72
  5. Step 5: Solve for x
    x = 17,787,784,810.72/147,709.56
  6. Step 6: Final answer
    x = 120,424.06

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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.