Home / 142,342.11-213,513.17-58,142.00

Finding the Fourth Proportional to 142,342.11, 213,513.17 and 58,142.00

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Solution

The fourth proportional to 142,342.11, 213,513.17 and 58,142.00 is: 87,213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,342.11 : 213,513.17 = 58,142.00 : x
  2. Step 2: Convert to fraction form
    142,342.11/213,513.17 = 58,142.00/x
  3. Step 3: Cross multiply
    142,342.11x = 213,513.17 × 58,142.00
  4. Step 4: Simplify right side
    142,342.11x = 12,414,082,973.21
  5. Step 5: Solve for x
    x = 12,414,082,973.21/142,342.11
  6. Step 6: Final answer
    x = 87,213.00

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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.