Home / 137,615.25-189,909.39-80,293.98

Finding the Fourth Proportional to 137,615.25, 189,909.39 and 80,293.98

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Solution

The fourth proportional to 137,615.25, 189,909.39 and 80,293.98 is: 110,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,615.25 : 189,909.39 = 80,293.98 : x
  2. Step 2: Convert to fraction form
    137,615.25/189,909.39 = 80,293.98/x
  3. Step 3: Cross multiply
    137,615.25x = 189,909.39 × 80,293.98
  4. Step 4: Simplify right side
    137,615.25x = 15,248,580,762.47
  5. Step 5: Solve for x
    x = 15,248,580,762.47/137,615.25
  6. Step 6: Final answer
    x = 110,805.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.