Home / 84,749.40-127,124.10-83,194.20

Finding the Fourth Proportional to 84,749.40, 127,124.10 and 83,194.20

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Solution

The fourth proportional to 84,749.40, 127,124.10 and 83,194.20 is: 124,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,749.40 : 127,124.10 = 83,194.20 : x
  2. Step 2: Convert to fraction form
    84,749.40/127,124.10 = 83,194.20/x
  3. Step 3: Cross multiply
    84,749.40x = 127,124.10 × 83,194.20
  4. Step 4: Simplify right side
    84,749.40x = 10,575,987,800.22
  5. Step 5: Solve for x
    x = 10,575,987,800.22/84,749.40
  6. Step 6: Final answer
    x = 124,791.30

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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.