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Finding the Fourth Proportional to 135,674.25, 187,230.51 and 75,254.19

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Solution

The fourth proportional to 135,674.25, 187,230.51 and 75,254.19 is: 103,850.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,674.25 : 187,230.51 = 75,254.19 : x
  2. Step 2: Convert to fraction form
    135,674.25/187,230.51 = 75,254.19/x
  3. Step 3: Cross multiply
    135,674.25x = 187,230.51 × 75,254.19
  4. Step 4: Simplify right side
    135,674.25x = 14,089,880,373.34
  5. Step 5: Solve for x
    x = 14,089,880,373.34/135,674.25
  6. Step 6: Final answer
    x = 103,850.81

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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.