Home / 122,639.14-169,261.37-71,682.04

Finding the Fourth Proportional to 122,639.14, 169,261.37 and 71,682.04

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Solution

The fourth proportional to 122,639.14, 169,261.37 and 71,682.04 is: 98,932.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,639.14 : 169,261.37 = 71,682.04 : x
  2. Step 2: Convert to fraction form
    122,639.14/169,261.37 = 71,682.04/x
  3. Step 3: Cross multiply
    122,639.14x = 169,261.37 × 71,682.04
  4. Step 4: Simplify right side
    122,639.14x = 12,133,000,294.79
  5. Step 5: Solve for x
    x = 12,133,000,294.79/122,639.14
  6. Step 6: Final answer
    x = 98,932.53

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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.