Home / 148,330.32-222,339.96-69,378

Finding the Fourth Proportional to 148,330.32, 222,339.96 and 69,378

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Solution

The fourth proportional to 148,330.32, 222,339.96 and 69,378 is: 103,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,330.32 : 222,339.96 = 69,378 : x
  2. Step 2: Convert to fraction form
    148,330.32/222,339.96 = 69,378/x
  3. Step 3: Cross multiply
    148,330.32x = 222,339.96 × 69,378
  4. Step 4: Simplify right side
    148,330.32x = 15,425,501,744.88
  5. Step 5: Solve for x
    x = 15,425,501,744.88/148,330.32
  6. Step 6: Final answer
    x = 103,994.26

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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.