Home / 140,455.28-193,828.64-76,797.19

Finding the Fourth Proportional to 140,455.28, 193,828.64 and 76,797.19

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Solution

The fourth proportional to 140,455.28, 193,828.64 and 76,797.19 is: 105,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,455.28 : 193,828.64 = 76,797.19 : x
  2. Step 2: Convert to fraction form
    140,455.28/193,828.64 = 76,797.19/x
  3. Step 3: Cross multiply
    140,455.28x = 193,828.64 × 76,797.19
  4. Step 4: Simplify right side
    140,455.28x = 14,885,493,540.39
  5. Step 5: Solve for x
    x = 14,885,493,540.39/140,455.28
  6. Step 6: Final answer
    x = 105,980.31

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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.