Home / 135,640.16-187,194.48-75,229.76

Finding the Fourth Proportional to 135,640.16, 187,194.48 and 75,229.76

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Solution

The fourth proportional to 135,640.16, 187,194.48 and 75,229.76 is: 103,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,640.16 : 187,194.48 = 75,229.76 : x
  2. Step 2: Convert to fraction form
    135,640.16/187,194.48 = 75,229.76/x
  3. Step 3: Cross multiply
    135,640.16x = 187,194.48 × 75,229.76
  4. Step 4: Simplify right side
    135,640.16x = 14,082,595,803.72
  5. Step 5: Solve for x
    x = 14,082,595,803.72/135,640.16
  6. Step 6: Final answer
    x = 103,823.20

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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.