Home / 189,623.88-284,215.50-71,219.70

Finding the Fourth Proportional to 189,623.88, 284,215.50 and 71,219.70

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Solution

The fourth proportional to 189,623.88, 284,215.50 and 71,219.70 is: 106,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,623.88 : 284,215.50 = 71,219.70 : x
  2. Step 2: Convert to fraction form
    189,623.88/284,215.50 = 71,219.70/x
  3. Step 3: Cross multiply
    189,623.88x = 284,215.50 × 71,219.70
  4. Step 4: Simplify right side
    189,623.88x = 20,241,742,645.35
  5. Step 5: Solve for x
    x = 20,241,742,645.35/189,623.88
  6. Step 6: Final answer
    x = 106,746.80

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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.