Home / 135,119.36-186,483.24-77,757.52

Finding the Fourth Proportional to 135,119.36, 186,483.24 and 77,757.52

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Solution

The fourth proportional to 135,119.36, 186,483.24 and 77,757.52 is: 107,316.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,119.36 : 186,483.24 = 77,757.52 : x
  2. Step 2: Convert to fraction form
    135,119.36/186,483.24 = 77,757.52/x
  3. Step 3: Cross multiply
    135,119.36x = 186,483.24 × 77,757.52
  4. Step 4: Simplify right side
    135,119.36x = 14,500,474,263.96
  5. Step 5: Solve for x
    x = 14,500,474,263.96/135,119.36
  6. Step 6: Final answer
    x = 107,316.04

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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.