Home / 251,096.45-346,513.08-137,919.20

Finding the Fourth Proportional to 251,096.45, 346,513.08 and 137,919.20

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Solution

The fourth proportional to 251,096.45, 346,513.08 and 137,919.20 is: 190,328.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,096.45 : 346,513.08 = 137,919.20 : x
  2. Step 2: Convert to fraction form
    251,096.45/346,513.08 = 137,919.20/x
  3. Step 3: Cross multiply
    251,096.45x = 346,513.08 × 137,919.20
  4. Step 4: Simplify right side
    251,096.45x = 47,790,805,050.57
  5. Step 5: Solve for x
    x = 47,790,805,050.57/251,096.45
  6. Step 6: Final answer
    x = 190,328.48

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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.