Home / 205,706.10-309,077.55-130,862.10

Finding the Fourth Proportional to 205,706.10, 309,077.55 and 130,862.10

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Solution

The fourth proportional to 205,706.10, 309,077.55 and 130,862.10 is: 196,622.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,706.10 : 309,077.55 = 130,862.10 : x
  2. Step 2: Convert to fraction form
    205,706.10/309,077.55 = 130,862.10/x
  3. Step 3: Cross multiply
    205,706.10x = 309,077.55 × 130,862.10
  4. Step 4: Simplify right side
    205,706.10x = 40,446,537,255.86
  5. Step 5: Solve for x
    x = 40,446,537,255.86/205,706.10
  6. Step 6: Final answer
    x = 196,622.94

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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.