Home / 122,832.45-169,505.87-80,390.07

Finding the Fourth Proportional to 122,832.45, 169,505.87 and 80,390.07

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Solution

The fourth proportional to 122,832.45, 169,505.87 and 80,390.07 is: 110,936.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,832.45 : 169,505.87 = 80,390.07 : x
  2. Step 2: Convert to fraction form
    122,832.45/169,505.87 = 80,390.07/x
  3. Step 3: Cross multiply
    122,832.45x = 169,505.87 × 80,390.07
  4. Step 4: Simplify right side
    122,832.45x = 13,626,588,352.76
  5. Step 5: Solve for x
    x = 13,626,588,352.76/122,832.45
  6. Step 6: Final answer
    x = 110,936.39

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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.