Home / 162,971.58-224,901.26-90,379.58

Finding the Fourth Proportional to 162,971.58, 224,901.26 and 90,379.58

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Solution

The fourth proportional to 162,971.58, 224,901.26 and 90,379.58 is: 124,724.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,971.58 : 224,901.26 = 90,379.58 : x
  2. Step 2: Convert to fraction form
    162,971.58/224,901.26 = 90,379.58/x
  3. Step 3: Cross multiply
    162,971.58x = 224,901.26 × 90,379.58
  4. Step 4: Simplify right side
    162,971.58x = 20,326,481,420.27
  5. Step 5: Solve for x
    x = 20,326,481,420.27/162,971.58
  6. Step 6: Final answer
    x = 124,724.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.