Home / 135,812.24-187,412.09-75,382.90

Finding the Fourth Proportional to 135,812.24, 187,412.09 and 75,382.90

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Solution

The fourth proportional to 135,812.24, 187,412.09 and 75,382.90 is: 104,023.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,812.24 : 187,412.09 = 75,382.90 : x
  2. Step 2: Convert to fraction form
    135,812.24/187,412.09 = 75,382.90/x
  3. Step 3: Cross multiply
    135,812.24x = 187,412.09 × 75,382.90
  4. Step 4: Simplify right side
    135,812.24x = 14,127,665,525.29
  5. Step 5: Solve for x
    x = 14,127,665,525.29/135,812.24
  6. Step 6: Final answer
    x = 104,023.51

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1.5x scale

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.