Home / 142,632.12-196,818.66-85,260.06

Finding the Fourth Proportional to 142,632.12, 196,818.66 and 85,260.06

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Solution

The fourth proportional to 142,632.12, 196,818.66 and 85,260.06 is: 117,650.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,632.12 : 196,818.66 = 85,260.06 : x
  2. Step 2: Convert to fraction form
    142,632.12/196,818.66 = 85,260.06/x
  3. Step 3: Cross multiply
    142,632.12x = 196,818.66 × 85,260.06
  4. Step 4: Simplify right side
    142,632.12x = 16,780,770,760.72
  5. Step 5: Solve for x
    x = 16,780,770,760.72/142,632.12
  6. Step 6: Final answer
    x = 117,650.71

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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.