Home / 208,317.03-312,490.23-103,107.75

Finding the Fourth Proportional to 208,317.03, 312,490.23 and 103,107.75

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Solution

The fourth proportional to 208,317.03, 312,490.23 and 103,107.75 is: 154,668.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,317.03 : 312,490.23 = 103,107.75 : x
  2. Step 2: Convert to fraction form
    208,317.03/312,490.23 = 103,107.75/x
  3. Step 3: Cross multiply
    208,317.03x = 312,490.23 × 103,107.75
  4. Step 4: Simplify right side
    208,317.03x = 32,220,164,512.28
  5. Step 5: Solve for x
    x = 32,220,164,512.28/208,317.03
  6. Step 6: Final answer
    x = 154,668.89

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1.5x scale

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.