Home / 158,628.12-218,862.42-102,072.28

Finding the Fourth Proportional to 158,628.12, 218,862.42 and 102,072.28

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Solution

The fourth proportional to 158,628.12, 218,862.42 and 102,072.28 is: 140,831.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,628.12 : 218,862.42 = 102,072.28 : x
  2. Step 2: Convert to fraction form
    158,628.12/218,862.42 = 102,072.28/x
  3. Step 3: Cross multiply
    158,628.12x = 218,862.42 × 102,072.28
  4. Step 4: Simplify right side
    158,628.12x = 22,339,786,215.72
  5. Step 5: Solve for x
    x = 22,339,786,215.72/158,628.12
  6. Step 6: Final answer
    x = 140,831.19

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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.