Home / 140,648.41-194,095.02-76,990.24

Finding the Fourth Proportional to 140,648.41, 194,095.02 and 76,990.24

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Solution

The fourth proportional to 140,648.41, 194,095.02 and 76,990.24 is: 106,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,648.41 : 194,095.02 = 76,990.24 : x
  2. Step 2: Convert to fraction form
    140,648.41/194,095.02 = 76,990.24/x
  3. Step 3: Cross multiply
    140,648.41x = 194,095.02 × 76,990.24
  4. Step 4: Simplify right side
    140,648.41x = 14,943,422,172.60
  5. Step 5: Solve for x
    x = 14,943,422,172.60/140,648.41
  6. Step 6: Final answer
    x = 106,246.65

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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.