Home / 124,272.36-171,507.78-76,553.64

Finding the Fourth Proportional to 124,272.36, 171,507.78 and 76,553.64

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Solution

The fourth proportional to 124,272.36, 171,507.78 and 76,553.64 is: 105,651.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,272.36 : 171,507.78 = 76,553.64 : x
  2. Step 2: Convert to fraction form
    124,272.36/171,507.78 = 76,553.64/x
  3. Step 3: Cross multiply
    124,272.36x = 171,507.78 × 76,553.64
  4. Step 4: Simplify right side
    124,272.36x = 13,129,544,847.32
  5. Step 5: Solve for x
    x = 13,129,544,847.32/124,272.36
  6. Step 6: Final answer
    x = 105,651.37

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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.