Home / 171,107.72-236,124.55-99,512.63

Finding the Fourth Proportional to 171,107.72, 236,124.55 and 99,512.63

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Solution

The fourth proportional to 171,107.72, 236,124.55 and 99,512.63 is: 137,325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,107.72 : 236,124.55 = 99,512.63 : x
  2. Step 2: Convert to fraction form
    171,107.72/236,124.55 = 99,512.63/x
  3. Step 3: Cross multiply
    171,107.72x = 236,124.55 × 99,512.63
  4. Step 4: Simplify right side
    171,107.72x = 23,497,374,978.07
  5. Step 5: Solve for x
    x = 23,497,374,978.07/171,107.72
  6. Step 6: Final answer
    x = 137,325.04

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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.