Home / 156,040.83-215,556.80-124,168.95

Finding the Fourth Proportional to 156,040.83, 215,556.80 and 124,168.95

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Solution

The fourth proportional to 156,040.83, 215,556.80 and 124,168.95 is: 171,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,040.83 : 215,556.80 = 124,168.95 : x
  2. Step 2: Convert to fraction form
    156,040.83/215,556.80 = 124,168.95/x
  3. Step 3: Cross multiply
    156,040.83x = 215,556.80 × 124,168.95
  4. Step 4: Simplify right side
    156,040.83x = 26,765,460,900.52
  5. Step 5: Solve for x
    x = 26,765,460,900.52/156,040.83
  6. Step 6: Final answer
    x = 171,528.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.