Home / 127,749.07-191,512.23-52,822.45

Finding the Fourth Proportional to 127,749.07, 191,512.23 and 52,822.45

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Solution

The fourth proportional to 127,749.07, 191,512.23 and 52,822.45 is: 79,187.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,749.07 : 191,512.23 = 52,822.45 : x
  2. Step 2: Convert to fraction form
    127,749.07/191,512.23 = 52,822.45/x
  3. Step 3: Cross multiply
    127,749.07x = 191,512.23 × 52,822.45
  4. Step 4: Simplify right side
    127,749.07x = 10,116,145,193.56
  5. Step 5: Solve for x
    x = 10,116,145,193.56/127,749.07
  6. Step 6: Final answer
    x = 79,187.62

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1.5x scale

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.