Home / 127,913.88-191,871.28-39,167.02

Finding the Fourth Proportional to 127,913.88, 191,871.28 and 39,167.02

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Solution

The fourth proportional to 127,913.88, 191,871.28 and 39,167.02 is: 58,750.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,913.88 : 191,871.28 = 39,167.02 : x
  2. Step 2: Convert to fraction form
    127,913.88/191,871.28 = 39,167.02/x
  3. Step 3: Cross multiply
    127,913.88x = 191,871.28 × 39,167.02
  4. Step 4: Simplify right side
    127,913.88x = 7,515,026,010.35
  5. Step 5: Solve for x
    x = 7,515,026,010.35/127,913.88
  6. Step 6: Final answer
    x = 58,750.67

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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.