Home / 140,455.78-193,829.33-76,797.69

Finding the Fourth Proportional to 140,455.78, 193,829.33 and 76,797.69

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Solution

The fourth proportional to 140,455.78, 193,829.33 and 76,797.69 is: 105,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,455.78 : 193,829.33 = 76,797.69 : x
  2. Step 2: Convert to fraction form
    140,455.78/193,829.33 = 76,797.69/x
  3. Step 3: Cross multiply
    140,455.78x = 193,829.33 × 76,797.69
  4. Step 4: Simplify right side
    140,455.78x = 14,885,643,445.11
  5. Step 5: Solve for x
    x = 14,885,643,445.11/140,455.78
  6. Step 6: Final answer
    x = 105,981.00

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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.