Home / 124,147.55-171,342.07-73,143.98

Finding the Fourth Proportional to 124,147.55, 171,342.07 and 73,143.98

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Solution

The fourth proportional to 124,147.55, 171,342.07 and 73,143.98 is: 100,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,147.55 : 171,342.07 = 73,143.98 : x
  2. Step 2: Convert to fraction form
    124,147.55/171,342.07 = 73,143.98/x
  3. Step 3: Cross multiply
    124,147.55x = 171,342.07 × 73,143.98
  4. Step 4: Simplify right side
    124,147.55x = 12,532,640,544.20
  5. Step 5: Solve for x
    x = 12,532,640,544.20/124,147.55
  6. Step 6: Final answer
    x = 100,949.56

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1.5x scale

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.