Home / 130,708.17-196,010.42-68,431.05

Finding the Fourth Proportional to 130,708.17, 196,010.42 and 68,431.05

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Solution

The fourth proportional to 130,708.17, 196,010.42 and 68,431.05 is: 102,619.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,708.17 : 196,010.42 = 68,431.05 : x
  2. Step 2: Convert to fraction form
    130,708.17/196,010.42 = 68,431.05/x
  3. Step 3: Cross multiply
    130,708.17x = 196,010.42 × 68,431.05
  4. Step 4: Simplify right side
    130,708.17x = 13,413,198,509.39
  5. Step 5: Solve for x
    x = 13,413,198,509.39/130,708.17
  6. Step 6: Final answer
    x = 102,619.43

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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.