Home / 148,315.39-222,288.05-72,351.31

Finding the Fourth Proportional to 148,315.39, 222,288.05 and 72,351.31

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Solution

The fourth proportional to 148,315.39, 222,288.05 and 72,351.31 is: 108,436.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,315.39 : 222,288.05 = 72,351.31 : x
  2. Step 2: Convert to fraction form
    148,315.39/222,288.05 = 72,351.31/x
  3. Step 3: Cross multiply
    148,315.39x = 222,288.05 × 72,351.31
  4. Step 4: Simplify right side
    148,315.39x = 16,082,832,187.60
  5. Step 5: Solve for x
    x = 16,082,832,187.60/148,315.39
  6. Step 6: Final answer
    x = 108,436.70

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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.