Home / 135,444.15-186,914.49-75,015.96

Finding the Fourth Proportional to 135,444.15, 186,914.49 and 75,015.96

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Solution

The fourth proportional to 135,444.15, 186,914.49 and 75,015.96 is: 103,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,444.15 : 186,914.49 = 75,015.96 : x
  2. Step 2: Convert to fraction form
    135,444.15/186,914.49 = 75,015.96/x
  3. Step 3: Cross multiply
    135,444.15x = 186,914.49 × 75,015.96
  4. Step 4: Simplify right side
    135,444.15x = 14,021,569,905.26
  5. Step 5: Solve for x
    x = 14,021,569,905.26/135,444.15
  6. Step 6: Final answer
    x = 103,522.89

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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.