Home / 157,563.28-236,449.96-81,731.72

Finding the Fourth Proportional to 157,563.28, 236,449.96 and 81,731.72

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Solution

The fourth proportional to 157,563.28, 236,449.96 and 81,731.72 is: 122,652.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,563.28 : 236,449.96 = 81,731.72 : x
  2. Step 2: Convert to fraction form
    157,563.28/236,449.96 = 81,731.72/x
  3. Step 3: Cross multiply
    157,563.28x = 236,449.96 × 81,731.72
  4. Step 4: Simplify right side
    157,563.28x = 19,325,461,924.73
  5. Step 5: Solve for x
    x = 19,325,461,924.73/157,563.28
  6. Step 6: Final answer
    x = 122,652.07

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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.