Home / 147,933-221,606.28-68,938.56

Finding the Fourth Proportional to 147,933, 221,606.28 and 68,938.56

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Solution

The fourth proportional to 147,933, 221,606.28 and 68,938.56 is: 103,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,933 : 221,606.28 = 68,938.56 : x
  2. Step 2: Convert to fraction form
    147,933/221,606.28 = 68,938.56/x
  3. Step 3: Cross multiply
    147,933x = 221,606.28 × 68,938.56
  4. Step 4: Simplify right side
    147,933x = 15,277,217,830.16
  5. Step 5: Solve for x
    x = 15,277,217,830.16/147,933
  6. Step 6: Final answer
    x = 103,271.20

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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.