Home / 131,020.38-196,528.74-74,740.38

Finding the Fourth Proportional to 131,020.38, 196,528.74 and 74,740.38

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Solution

The fourth proportional to 131,020.38, 196,528.74 and 74,740.38 is: 112,109.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,020.38 : 196,528.74 = 74,740.38 : x
  2. Step 2: Convert to fraction form
    131,020.38/196,528.74 = 74,740.38/x
  3. Step 3: Cross multiply
    131,020.38x = 196,528.74 × 74,740.38
  4. Step 4: Simplify right side
    131,020.38x = 14,688,632,708.52
  5. Step 5: Solve for x
    x = 14,688,632,708.52/131,020.38
  6. Step 6: Final answer
    x = 112,109.53

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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.