Home / 102,564.20-153,932.70-40,279.40

Finding the Fourth Proportional to 102,564.20, 153,932.70 and 40,279.40

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Solution

The fourth proportional to 102,564.20, 153,932.70 and 40,279.40 is: 60,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,564.20 : 153,932.70 = 40,279.40 : x
  2. Step 2: Convert to fraction form
    102,564.20/153,932.70 = 40,279.40/x
  3. Step 3: Cross multiply
    102,564.20x = 153,932.70 × 40,279.40
  4. Step 4: Simplify right side
    102,564.20x = 6,200,316,796.38
  5. Step 5: Solve for x
    x = 6,200,316,796.38/102,564.20
  6. Step 6: Final answer
    x = 60,453.03

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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.