Home / 157,045.63-235,704.42-82,218.10

Finding the Fourth Proportional to 157,045.63, 235,704.42 and 82,218.10

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Solution

The fourth proportional to 157,045.63, 235,704.42 and 82,218.10 is: 123,398.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,045.63 : 235,704.42 = 82,218.10 : x
  2. Step 2: Convert to fraction form
    157,045.63/235,704.42 = 82,218.10/x
  3. Step 3: Cross multiply
    157,045.63x = 235,704.42 × 82,218.10
  4. Step 4: Simplify right side
    157,045.63x = 19,379,167,984.39
  5. Step 5: Solve for x
    x = 19,379,167,984.39/157,045.63
  6. Step 6: Final answer
    x = 123,398.33

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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.