Home / 140,420.52-193,783.32-76,764.24

Finding the Fourth Proportional to 140,420.52, 193,783.32 and 76,764.24

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Solution

The fourth proportional to 140,420.52, 193,783.32 and 76,764.24 is: 105,936.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,420.52 : 193,783.32 = 76,764.24 : x
  2. Step 2: Convert to fraction form
    140,420.52/193,783.32 = 76,764.24/x
  3. Step 3: Cross multiply
    140,420.52x = 193,783.32 × 76,764.24
  4. Step 4: Simplify right side
    140,420.52x = 14,875,629,284.48
  5. Step 5: Solve for x
    x = 14,875,629,284.48/140,420.52
  6. Step 6: Final answer
    x = 105,936.29

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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.