Home / 135,520.05-187,014.93-75,090.51

Finding the Fourth Proportional to 135,520.05, 187,014.93 and 75,090.51

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Solution

The fourth proportional to 135,520.05, 187,014.93 and 75,090.51 is: 103,623.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,520.05 : 187,014.93 = 75,090.51 : x
  2. Step 2: Convert to fraction form
    135,520.05/187,014.93 = 75,090.51/x
  3. Step 3: Cross multiply
    135,520.05x = 187,014.93 × 75,090.51
  4. Step 4: Simplify right side
    135,520.05x = 14,043,046,471.31
  5. Step 5: Solve for x
    x = 14,043,046,471.31/135,520.05
  6. Step 6: Final answer
    x = 103,623.39

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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.