Home / 142,713.43-213,968.81-71,584.90

Finding the Fourth Proportional to 142,713.43, 213,968.81 and 71,584.90

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Solution

The fourth proportional to 142,713.43, 213,968.81 and 71,584.90 is: 107,326.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,713.43 : 213,968.81 = 71,584.90 : x
  2. Step 2: Convert to fraction form
    142,713.43/213,968.81 = 71,584.90/x
  3. Step 3: Cross multiply
    142,713.43x = 213,968.81 × 71,584.90
  4. Step 4: Simplify right side
    142,713.43x = 15,316,935,511.01
  5. Step 5: Solve for x
    x = 15,316,935,511.01/142,713.43
  6. Step 6: Final answer
    x = 107,326.52

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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.