Home / 248,145.90-371,808.45-142,781.10

Finding the Fourth Proportional to 248,145.90, 371,808.45 and 142,781.10

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Solution

The fourth proportional to 248,145.90, 371,808.45 and 142,781.10 is: 213,935.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,145.90 : 371,808.45 = 142,781.10 : x
  2. Step 2: Convert to fraction form
    248,145.90/371,808.45 = 142,781.10/x
  3. Step 3: Cross multiply
    248,145.90x = 371,808.45 × 142,781.10
  4. Step 4: Simplify right side
    248,145.90x = 53,087,219,480.30
  5. Step 5: Solve for x
    x = 53,087,219,480.30/248,145.90
  6. Step 6: Final answer
    x = 213,935.51

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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.