Home / 128,343.12-192,492.81-34,827

Finding the Fourth Proportional to 128,343.12, 192,492.81 and 34,827

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Solution

The fourth proportional to 128,343.12, 192,492.81 and 34,827 is: 52,234.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,343.12 : 192,492.81 = 34,827 : x
  2. Step 2: Convert to fraction form
    128,343.12/192,492.81 = 34,827/x
  3. Step 3: Cross multiply
    128,343.12x = 192,492.81 × 34,827
  4. Step 4: Simplify right side
    128,343.12x = 6,703,947,093.87
  5. Step 5: Solve for x
    x = 6,703,947,093.87/128,343.12
  6. Step 6: Final answer
    x = 52,234.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.