Home / 123,036.25-169,790.07-66,447.64

Finding the Fourth Proportional to 123,036.25, 169,790.07 and 66,447.64

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Solution

The fourth proportional to 123,036.25, 169,790.07 and 66,447.64 is: 91,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,036.25 : 169,790.07 = 66,447.64 : x
  2. Step 2: Convert to fraction form
    123,036.25/169,790.07 = 66,447.64/x
  3. Step 3: Cross multiply
    123,036.25x = 169,790.07 × 66,447.64
  4. Step 4: Simplify right side
    123,036.25x = 11,282,149,446.93
  5. Step 5: Solve for x
    x = 11,282,149,446.93/123,036.25
  6. Step 6: Final answer
    x = 91,697.77

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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.