Home / 148,101.66-221,635.71-121,135.95

Finding the Fourth Proportional to 148,101.66, 221,635.71 and 121,135.95

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Solution

The fourth proportional to 148,101.66, 221,635.71 and 121,135.95 is: 181,281.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,101.66 : 221,635.71 = 121,135.95 : x
  2. Step 2: Convert to fraction form
    148,101.66/221,635.71 = 121,135.95/x
  3. Step 3: Cross multiply
    148,101.66x = 221,635.71 × 121,135.95
  4. Step 4: Simplify right side
    148,101.66x = 26,848,052,284.77
  5. Step 5: Solve for x
    x = 26,848,052,284.77/148,101.66
  6. Step 6: Final answer
    x = 181,281.24

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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.