Home / 142,724.88-213,926.94-67,783.68

Finding the Fourth Proportional to 142,724.88, 213,926.94 and 67,783.68

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Solution

The fourth proportional to 142,724.88, 213,926.94 and 67,783.68 is: 101,599.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,724.88 : 213,926.94 = 67,783.68 : x
  2. Step 2: Convert to fraction form
    142,724.88/213,926.94 = 67,783.68/x
  3. Step 3: Cross multiply
    142,724.88x = 213,926.94 × 67,783.68
  4. Step 4: Simplify right side
    142,724.88x = 14,500,755,244.34
  5. Step 5: Solve for x
    x = 14,500,755,244.34/142,724.88
  6. Step 6: Final answer
    x = 101,599.35

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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.