Home / 123,192.11-170,005.50-66,603.89

Finding the Fourth Proportional to 123,192.11, 170,005.50 and 66,603.89

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Solution

The fourth proportional to 123,192.11, 170,005.50 and 66,603.89 is: 91,913.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,192.11 : 170,005.50 = 66,603.89 : x
  2. Step 2: Convert to fraction form
    123,192.11/170,005.50 = 66,603.89/x
  3. Step 3: Cross multiply
    123,192.11x = 170,005.50 × 66,603.89
  4. Step 4: Simplify right side
    123,192.11x = 11,323,026,771.37
  5. Step 5: Solve for x
    x = 11,323,026,771.37/123,192.11
  6. Step 6: Final answer
    x = 91,913.57

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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.