Home / 140,580.20-194,002.08-76,920.68

Finding the Fourth Proportional to 140,580.20, 194,002.08 and 76,920.68

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Solution

The fourth proportional to 140,580.20, 194,002.08 and 76,920.68 is: 106,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,580.20 : 194,002.08 = 76,920.68 : x
  2. Step 2: Convert to fraction form
    140,580.20/194,002.08 = 76,920.68/x
  3. Step 3: Cross multiply
    140,580.20x = 194,002.08 × 76,920.68
  4. Step 4: Simplify right side
    140,580.20x = 14,922,771,915.01
  5. Step 5: Solve for x
    x = 14,922,771,915.01/140,580.20
  6. Step 6: Final answer
    x = 106,151.31

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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.