Home / 90,186.48-135,311.92-40,262.13

Finding the Fourth Proportional to 90,186.48, 135,311.92 and 40,262.13

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Solution

The fourth proportional to 90,186.48, 135,311.92 and 40,262.13 is: 60,407.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,186.48 : 135,311.92 = 40,262.13 : x
  2. Step 2: Convert to fraction form
    90,186.48/135,311.92 = 40,262.13/x
  3. Step 3: Cross multiply
    90,186.48x = 135,311.92 × 40,262.13
  4. Step 4: Simplify right side
    90,186.48x = 5,447,946,012.93
  5. Step 5: Solve for x
    x = 5,447,946,012.93/90,186.48
  6. Step 6: Final answer
    x = 60,407.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.