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Finding the Fourth Proportional to 159,631, 239,447.70 and 70,860.64

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Solution

The fourth proportional to 159,631, 239,447.70 and 70,860.64 is: 106,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,631 : 239,447.70 = 70,860.64 : x
  2. Step 2: Convert to fraction form
    159,631/239,447.70 = 70,860.64/x
  3. Step 3: Cross multiply
    159,631x = 239,447.70 × 70,860.64
  4. Step 4: Simplify right side
    159,631x = 16,967,417,268.53
  5. Step 5: Solve for x
    x = 16,967,417,268.53/159,631
  6. Step 6: Final answer
    x = 106,291.49

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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.