Home / 142,725.88-213,928.44-67,784.68

Finding the Fourth Proportional to 142,725.88, 213,928.44 and 67,784.68

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Solution

The fourth proportional to 142,725.88, 213,928.44 and 67,784.68 is: 101,600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,725.88 : 213,928.44 = 67,784.68 : x
  2. Step 2: Convert to fraction form
    142,725.88/213,928.44 = 67,784.68/x
  3. Step 3: Cross multiply
    142,725.88x = 213,928.44 × 67,784.68
  4. Step 4: Simplify right side
    142,725.88x = 14,501,070,848.30
  5. Step 5: Solve for x
    x = 14,501,070,848.30/142,725.88
  6. Step 6: Final answer
    x = 101,600.85

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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.