Home / 126,820.61-190,252.78-42,588.88

Finding the Fourth Proportional to 126,820.61, 190,252.78 and 42,588.88

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Solution

The fourth proportional to 126,820.61, 190,252.78 and 42,588.88 is: 63,890.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,820.61 : 190,252.78 = 42,588.88 : x
  2. Step 2: Convert to fraction form
    126,820.61/190,252.78 = 42,588.88/x
  3. Step 3: Cross multiply
    126,820.61x = 190,252.78 × 42,588.88
  4. Step 4: Simplify right side
    126,820.61x = 8,102,652,817.09
  5. Step 5: Solve for x
    x = 8,102,652,817.09/126,820.61
  6. Step 6: Final answer
    x = 63,890.66

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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.