Home / 189,942.60-284,913.90-145,655.85

Finding the Fourth Proportional to 189,942.60, 284,913.90 and 145,655.85

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Solution

The fourth proportional to 189,942.60, 284,913.90 and 145,655.85 is: 218,483.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,942.60 : 284,913.90 = 145,655.85 : x
  2. Step 2: Convert to fraction form
    189,942.60/284,913.90 = 145,655.85/x
  3. Step 3: Cross multiply
    189,942.60x = 284,913.90 × 145,655.85
  4. Step 4: Simplify right side
    189,942.60x = 41,499,376,281.32
  5. Step 5: Solve for x
    x = 41,499,376,281.32/189,942.60
  6. Step 6: Final answer
    x = 218,483.78

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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.