Home / 152,628.20-228,942.30-135,715.40

Finding the Fourth Proportional to 152,628.20, 228,942.30 and 135,715.40

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Solution

The fourth proportional to 152,628.20, 228,942.30 and 135,715.40 is: 203,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,628.20 : 228,942.30 = 135,715.40 : x
  2. Step 2: Convert to fraction form
    152,628.20/228,942.30 = 135,715.40/x
  3. Step 3: Cross multiply
    152,628.20x = 228,942.30 × 135,715.40
  4. Step 4: Simplify right side
    152,628.20x = 31,070,995,821.42
  5. Step 5: Solve for x
    x = 31,070,995,821.42/152,628.20
  6. Step 6: Final answer
    x = 203,573.10

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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.