Home / 135,933.12-187,585.20-75,501.36

Finding the Fourth Proportional to 135,933.12, 187,585.20 and 75,501.36

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Solution

The fourth proportional to 135,933.12, 187,585.20 and 75,501.36 is: 104,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,933.12 : 187,585.20 = 75,501.36 : x
  2. Step 2: Convert to fraction form
    135,933.12/187,585.20 = 75,501.36/x
  3. Step 3: Cross multiply
    135,933.12x = 187,585.20 × 75,501.36
  4. Step 4: Simplify right side
    135,933.12x = 14,162,937,715.87
  5. Step 5: Solve for x
    x = 14,162,937,715.87/135,933.12
  6. Step 6: Final answer
    x = 104,190.49

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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.