Home / 127,988.48-191,981.90-68,852

Finding the Fourth Proportional to 127,988.48, 191,981.90 and 68,852

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Solution

The fourth proportional to 127,988.48, 191,981.90 and 68,852 is: 103,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,988.48 : 191,981.90 = 68,852 : x
  2. Step 2: Convert to fraction form
    127,988.48/191,981.90 = 68,852/x
  3. Step 3: Cross multiply
    127,988.48x = 191,981.90 × 68,852
  4. Step 4: Simplify right side
    127,988.48x = 13,218,337,778.80
  5. Step 5: Solve for x
    x = 13,218,337,778.80/127,988.48
  6. Step 6: Final answer
    x = 103,277.56

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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.