Home / 123,867.90-185,782.29-102,942.42

Finding the Fourth Proportional to 123,867.90, 185,782.29 and 102,942.42

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Solution

The fourth proportional to 123,867.90, 185,782.29 and 102,942.42 is: 154,397.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,867.90 : 185,782.29 = 102,942.42 : x
  2. Step 2: Convert to fraction form
    123,867.90/185,782.29 = 102,942.42/x
  3. Step 3: Cross multiply
    123,867.90x = 185,782.29 × 102,942.42
  4. Step 4: Simplify right side
    123,867.90x = 19,124,878,525.74
  5. Step 5: Solve for x
    x = 19,124,878,525.74/123,867.90
  6. Step 6: Final answer
    x = 154,397.37

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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.