Home / 123,215.94-170,037.77-66,627.45

Finding the Fourth Proportional to 123,215.94, 170,037.77 and 66,627.45

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Solution

The fourth proportional to 123,215.94, 170,037.77 and 66,627.45 is: 91,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,215.94 : 170,037.77 = 66,627.45 : x
  2. Step 2: Convert to fraction form
    123,215.94/170,037.77 = 66,627.45/x
  3. Step 3: Cross multiply
    123,215.94x = 170,037.77 × 66,627.45
  4. Step 4: Simplify right side
    123,215.94x = 11,329,182,685.65
  5. Step 5: Solve for x
    x = 11,329,182,685.65/123,215.94
  6. Step 6: Final answer
    x = 91,945.76

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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.