Home / 140,423.02-193,782.78-76,760.97

Finding the Fourth Proportional to 140,423.02, 193,782.78 and 76,760.97

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Solution

The fourth proportional to 140,423.02, 193,782.78 and 76,760.97 is: 105,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,423.02 : 193,782.78 = 76,760.97 : x
  2. Step 2: Convert to fraction form
    140,423.02/193,782.78 = 76,760.97/x
  3. Step 3: Cross multiply
    140,423.02x = 193,782.78 × 76,760.97
  4. Step 4: Simplify right side
    140,423.02x = 14,874,953,435.41
  5. Step 5: Solve for x
    x = 14,874,953,435.41/140,423.02
  6. Step 6: Final answer
    x = 105,929.60

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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.