Home / 142,918.43-214,506.13-76,415.41

Finding the Fourth Proportional to 142,918.43, 214,506.13 and 76,415.41

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Solution

The fourth proportional to 142,918.43, 214,506.13 and 76,415.41 is: 114,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,918.43 : 214,506.13 = 76,415.41 : x
  2. Step 2: Convert to fraction form
    142,918.43/214,506.13 = 76,415.41/x
  3. Step 3: Cross multiply
    142,918.43x = 214,506.13 × 76,415.41
  4. Step 4: Simplify right side
    142,918.43x = 16,391,572,798.93
  5. Step 5: Solve for x
    x = 16,391,572,798.93/142,918.43
  6. Step 6: Final answer
    x = 114,691.81

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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.