Home / 120,431,637.76-166,183,667.84-68,210,248.96

Finding the Fourth Proportional to 120,431,637.76, 166,183,667.84 and 68,210,248.96

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Solution

The fourth proportional to 120,431,637.76, 166,183,667.84 and 68,210,248.96 is: 94,123,351.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,431,637.76 : 166,183,667.84 = 68,210,248.96 : x
  2. Step 2: Convert to fraction form
    120,431,637.76/166,183,667.84 = 68,210,248.96/x
  3. Step 3: Cross multiply
    120,431,637.76x = 166,183,667.84 × 68,210,248.96
  4. Step 4: Simplify right side
    120,431,637.76x = 11,335,429,356,452,344
  5. Step 5: Solve for x
    x = 11,335,429,356,452,344/120,431,637.76
  6. Step 6: Final answer
    x = 94,123,351.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.