Home / 122,112.24-168,520.08-71,116.75

Finding the Fourth Proportional to 122,112.24, 168,520.08 and 71,116.75

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Solution

The fourth proportional to 122,112.24, 168,520.08 and 71,116.75 is: 98,144.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,112.24 : 168,520.08 = 71,116.75 : x
  2. Step 2: Convert to fraction form
    122,112.24/168,520.08 = 71,116.75/x
  3. Step 3: Cross multiply
    122,112.24x = 168,520.08 × 71,116.75
  4. Step 4: Simplify right side
    122,112.24x = 11,984,600,399.34
  5. Step 5: Solve for x
    x = 11,984,600,399.34/122,112.24
  6. Step 6: Final answer
    x = 98,144.14

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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.