Home / 135,740.21-187,343.98-75,330.26

Finding the Fourth Proportional to 135,740.21, 187,343.98 and 75,330.26

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Solution

The fourth proportional to 135,740.21, 187,343.98 and 75,330.26 is: 103,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,740.21 : 187,343.98 = 75,330.26 : x
  2. Step 2: Convert to fraction form
    135,740.21/187,343.98 = 75,330.26/x
  3. Step 3: Cross multiply
    135,740.21x = 187,343.98 × 75,330.26
  4. Step 4: Simplify right side
    135,740.21x = 14,112,670,300.33
  5. Step 5: Solve for x
    x = 14,112,670,300.33/135,740.21
  6. Step 6: Final answer
    x = 103,968.24

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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.