Home / 189,400.20-284,428.35-100,826.70

Finding the Fourth Proportional to 189,400.20, 284,428.35 and 100,826.70

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Solution

The fourth proportional to 189,400.20, 284,428.35 and 100,826.70 is: 151,414.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,400.20 : 284,428.35 = 100,826.70 : x
  2. Step 2: Convert to fraction form
    189,400.20/284,428.35 = 100,826.70/x
  3. Step 3: Cross multiply
    189,400.20x = 284,428.35 × 100,826.70
  4. Step 4: Simplify right side
    189,400.20x = 28,677,971,916.95
  5. Step 5: Solve for x
    x = 28,677,971,916.95/189,400.20
  6. Step 6: Final answer
    x = 151,414.69

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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.