Home / 144,213.90-198,734.01-103,851.39

Finding the Fourth Proportional to 144,213.90, 198,734.01 and 103,851.39

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Solution

The fourth proportional to 144,213.90, 198,734.01 and 103,851.39 is: 143,112.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,213.90 : 198,734.01 = 103,851.39 : x
  2. Step 2: Convert to fraction form
    144,213.90/198,734.01 = 103,851.39/x
  3. Step 3: Cross multiply
    144,213.90x = 198,734.01 × 103,851.39
  4. Step 4: Simplify right side
    144,213.90x = 20,638,803,178.77
  5. Step 5: Solve for x
    x = 20,638,803,178.77/144,213.90
  6. Step 6: Final answer
    x = 143,112.44

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1.5x scale

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.