Home / 123,036.24-169,790.04-66,447.63

Finding the Fourth Proportional to 123,036.24, 169,790.04 and 66,447.63

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Solution

The fourth proportional to 123,036.24, 169,790.04 and 66,447.63 is: 91,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,036.24 : 169,790.04 = 66,447.63 : x
  2. Step 2: Convert to fraction form
    123,036.24/169,790.04 = 66,447.63/x
  3. Step 3: Cross multiply
    123,036.24x = 169,790.04 × 66,447.63
  4. Step 4: Simplify right side
    123,036.24x = 11,282,145,755.61
  5. Step 5: Solve for x
    x = 11,282,145,755.61/123,036.24
  6. Step 6: Final answer
    x = 91,697.74

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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.