Home / 158,604.12-218,871.63-90,620.58

Finding the Fourth Proportional to 158,604.12, 218,871.63 and 90,620.58

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Solution

The fourth proportional to 158,604.12, 218,871.63 and 90,620.58 is: 125,055.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,604.12 : 218,871.63 = 90,620.58 : x
  2. Step 2: Convert to fraction form
    158,604.12/218,871.63 = 90,620.58/x
  3. Step 3: Cross multiply
    158,604.12x = 218,871.63 × 90,620.58
  4. Step 4: Simplify right side
    158,604.12x = 19,834,274,056.15
  5. Step 5: Solve for x
    x = 19,834,274,056.15/158,604.12
  6. Step 6: Final answer
    x = 125,055.23

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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.