Home / 123,037.50-169,791.78-66,448.89

Finding the Fourth Proportional to 123,037.50, 169,791.78 and 66,448.89

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Solution

The fourth proportional to 123,037.50, 169,791.78 and 66,448.89 is: 91,699.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,037.50 : 169,791.78 = 66,448.89 : x
  2. Step 2: Convert to fraction form
    123,037.50/169,791.78 = 66,448.89/x
  3. Step 3: Cross multiply
    123,037.50x = 169,791.78 × 66,448.89
  4. Step 4: Simplify right side
    123,037.50x = 11,282,475,312.12
  5. Step 5: Solve for x
    x = 11,282,475,312.12/123,037.50
  6. Step 6: Final answer
    x = 91,699.48

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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.