Home / 189,390.24-284,011.56-70,997

Finding the Fourth Proportional to 189,390.24, 284,011.56 and 70,997

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Solution

The fourth proportional to 189,390.24, 284,011.56 and 70,997 is: 106,467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,390.24 : 284,011.56 = 70,997 : x
  2. Step 2: Convert to fraction form
    189,390.24/284,011.56 = 70,997/x
  3. Step 3: Cross multiply
    189,390.24x = 284,011.56 × 70,997
  4. Step 4: Simplify right side
    189,390.24x = 20,163,968,725.32
  5. Step 5: Solve for x
    x = 20,163,968,725.32/189,390.24
  6. Step 6: Final answer
    x = 106,467.83

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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.