Home / 122,840.96-169,529.10-69,131.12

Finding the Fourth Proportional to 122,840.96, 169,529.10 and 69,131.12

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Solution

The fourth proportional to 122,840.96, 169,529.10 and 69,131.12 is: 95,405.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,840.96 : 169,529.10 = 69,131.12 : x
  2. Step 2: Convert to fraction form
    122,840.96/169,529.10 = 69,131.12/x
  3. Step 3: Cross multiply
    122,840.96x = 169,529.10 × 69,131.12
  4. Step 4: Simplify right side
    122,840.96x = 11,719,736,555.59
  5. Step 5: Solve for x
    x = 11,719,736,555.59/122,840.96
  6. Step 6: Final answer
    x = 95,405.77

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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.