Home / 148,583.85-222,482.12-78,315.54

Finding the Fourth Proportional to 148,583.85, 222,482.12 and 78,315.54

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Solution

The fourth proportional to 148,583.85, 222,482.12 and 78,315.54 is: 117,265.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,583.85 : 222,482.12 = 78,315.54 : x
  2. Step 2: Convert to fraction form
    148,583.85/222,482.12 = 78,315.54/x
  3. Step 3: Cross multiply
    148,583.85x = 222,482.12 × 78,315.54
  4. Step 4: Simplify right side
    148,583.85x = 17,423,806,976.57
  5. Step 5: Solve for x
    x = 17,423,806,976.57/148,583.85
  6. Step 6: Final answer
    x = 117,265.82

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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.