Home / 140,487.42-193,872.55-76,825.21

Finding the Fourth Proportional to 140,487.42, 193,872.55 and 76,825.21

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Solution

The fourth proportional to 140,487.42, 193,872.55 and 76,825.21 is: 106,018.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,487.42 : 193,872.55 = 76,825.21 : x
  2. Step 2: Convert to fraction form
    140,487.42/193,872.55 = 76,825.21/x
  3. Step 3: Cross multiply
    140,487.42x = 193,872.55 × 76,825.21
  4. Step 4: Simplify right side
    140,487.42x = 14,894,299,366.99
  5. Step 5: Solve for x
    x = 14,894,299,366.99/140,487.42
  6. Step 6: Final answer
    x = 106,018.74

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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.