Home / 152,956.89-211,065.21-89,331.75

Finding the Fourth Proportional to 152,956.89, 211,065.21 and 89,331.75

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Solution

The fourth proportional to 152,956.89, 211,065.21 and 89,331.75 is: 123,268.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,956.89 : 211,065.21 = 89,331.75 : x
  2. Step 2: Convert to fraction form
    152,956.89/211,065.21 = 89,331.75/x
  3. Step 3: Cross multiply
    152,956.89x = 211,065.21 × 89,331.75
  4. Step 4: Simplify right side
    152,956.89x = 18,854,824,573.42
  5. Step 5: Solve for x
    x = 18,854,824,573.42/152,956.89
  6. Step 6: Final answer
    x = 123,268.88

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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.