Home / 457,634.03-686,443.68-142,091.24

Finding the Fourth Proportional to 457,634.03, 686,443.68 and 142,091.24

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Solution

The fourth proportional to 457,634.03, 686,443.68 and 142,091.24 is: 213,134.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,634.03 : 686,443.68 = 142,091.24 : x
  2. Step 2: Convert to fraction form
    457,634.03/686,443.68 = 142,091.24/x
  3. Step 3: Cross multiply
    457,634.03x = 686,443.68 × 142,091.24
  4. Step 4: Simplify right side
    457,634.03x = 97,537,630,249.14
  5. Step 5: Solve for x
    x = 97,537,630,249.14/457,634.03
  6. Step 6: Final answer
    x = 213,134.57

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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.