Home / 154,290.41-212,910.75-86,295.61

Finding the Fourth Proportional to 154,290.41, 212,910.75 and 86,295.61

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Solution

The fourth proportional to 154,290.41, 212,910.75 and 86,295.61 is: 119,082.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,290.41 : 212,910.75 = 86,295.61 : x
  2. Step 2: Convert to fraction form
    154,290.41/212,910.75 = 86,295.61/x
  3. Step 3: Cross multiply
    154,290.41x = 212,910.75 × 86,295.61
  4. Step 4: Simplify right side
    154,290.41x = 18,373,263,046.81
  5. Step 5: Solve for x
    x = 18,373,263,046.81/154,290.41
  6. Step 6: Final answer
    x = 119,082.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.