Home / 139,774.78-192,882.36-76,110.40

Finding the Fourth Proportional to 139,774.78, 192,882.36 and 76,110.40

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Solution

The fourth proportional to 139,774.78, 192,882.36 and 76,110.40 is: 105,028.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,774.78 : 192,882.36 = 76,110.40 : x
  2. Step 2: Convert to fraction form
    139,774.78/192,882.36 = 76,110.40/x
  3. Step 3: Cross multiply
    139,774.78x = 192,882.36 × 76,110.40
  4. Step 4: Simplify right side
    139,774.78x = 14,680,353,572.54
  5. Step 5: Solve for x
    x = 14,680,353,572.54/139,774.78
  6. Step 6: Final answer
    x = 105,028.63

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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.