Home / 102,668.20-153,725.44-67,041.28

Finding the Fourth Proportional to 102,668.20, 153,725.44 and 67,041.28

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Solution

The fourth proportional to 102,668.20, 153,725.44 and 67,041.28 is: 100,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,668.20 : 153,725.44 = 67,041.28 : x
  2. Step 2: Convert to fraction form
    102,668.20/153,725.44 = 67,041.28/x
  3. Step 3: Cross multiply
    102,668.20x = 153,725.44 × 67,041.28
  4. Step 4: Simplify right side
    102,668.20x = 10,305,950,266.16
  5. Step 5: Solve for x
    x = 10,305,950,266.16/102,668.20
  6. Step 6: Final answer
    x = 100,381.13

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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.