Home / 135,523.53-187,014.02-75,090.65

Finding the Fourth Proportional to 135,523.53, 187,014.02 and 75,090.65

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Solution

The fourth proportional to 135,523.53, 187,014.02 and 75,090.65 is: 103,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,523.53 : 187,014.02 = 75,090.65 : x
  2. Step 2: Convert to fraction form
    135,523.53/187,014.02 = 75,090.65/x
  3. Step 3: Cross multiply
    135,523.53x = 187,014.02 × 75,090.65
  4. Step 4: Simplify right side
    135,523.53x = 14,043,003,010.39
  5. Step 5: Solve for x
    x = 14,043,003,010.39/135,523.53
  6. Step 6: Final answer
    x = 103,620.40

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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.