Home / 123,998.28-171,110.36-67,409.16

Finding the Fourth Proportional to 123,998.28, 171,110.36 and 67,409.16

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Solution

The fourth proportional to 123,998.28, 171,110.36 and 67,409.16 is: 93,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,998.28 : 171,110.36 = 67,409.16 : x
  2. Step 2: Convert to fraction form
    123,998.28/171,110.36 = 67,409.16/x
  3. Step 3: Cross multiply
    123,998.28x = 171,110.36 × 67,409.16
  4. Step 4: Simplify right side
    123,998.28x = 11,534,405,634.90
  5. Step 5: Solve for x
    x = 11,534,405,634.90/123,998.28
  6. Step 6: Final answer
    x = 93,020.69

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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.