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Finding the Fourth Proportional to 135,038.56, 202,403.40 and 84,460.56

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Solution

The fourth proportional to 135,038.56, 202,403.40 and 84,460.56 is: 126,594.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,038.56 : 202,403.40 = 84,460.56 : x
  2. Step 2: Convert to fraction form
    135,038.56/202,403.40 = 84,460.56/x
  3. Step 3: Cross multiply
    135,038.56x = 202,403.40 × 84,460.56
  4. Step 4: Simplify right side
    135,038.56x = 17,095,104,509.90
  5. Step 5: Solve for x
    x = 17,095,104,509.90/135,038.56
  6. Step 6: Final answer
    x = 126,594.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.