Home / 364,747.12-547,152-128,069.44

Finding the Fourth Proportional to 364,747.12, 547,152 and 128,069.44

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Solution

The fourth proportional to 364,747.12, 547,152 and 128,069.44 is: 192,115.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,747.12 : 547,152 = 128,069.44 : x
  2. Step 2: Convert to fraction form
    364,747.12/547,152 = 128,069.44/x
  3. Step 3: Cross multiply
    364,747.12x = 547,152 × 128,069.44
  4. Step 4: Simplify right side
    364,747.12x = 70,073,450,234.88
  5. Step 5: Solve for x
    x = 70,073,450,234.88/364,747.12
  6. Step 6: Final answer
    x = 192,115.16

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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.