Home / 162,564.24-243,624.77-78,318.27

Finding the Fourth Proportional to 162,564.24, 243,624.77 and 78,318.27

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Solution

The fourth proportional to 162,564.24, 243,624.77 and 78,318.27 is: 117,370.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,564.24 : 243,624.77 = 78,318.27 : x
  2. Step 2: Convert to fraction form
    162,564.24/243,624.77 = 78,318.27/x
  3. Step 3: Cross multiply
    162,564.24x = 243,624.77 × 78,318.27
  4. Step 4: Simplify right side
    162,564.24x = 19,080,270,123.96
  5. Step 5: Solve for x
    x = 19,080,270,123.96/162,564.24
  6. Step 6: Final answer
    x = 117,370.65

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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.