Home / 123,389.36-170,277.84-66,800.72

Finding the Fourth Proportional to 123,389.36, 170,277.84 and 66,800.72

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Solution

The fourth proportional to 123,389.36, 170,277.84 and 66,800.72 is: 92,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,389.36 : 170,277.84 = 66,800.72 : x
  2. Step 2: Convert to fraction form
    123,389.36/170,277.84 = 66,800.72/x
  3. Step 3: Cross multiply
    123,389.36x = 170,277.84 × 66,800.72
  4. Step 4: Simplify right side
    123,389.36x = 11,374,682,312.04
  5. Step 5: Solve for x
    x = 11,374,682,312.04/123,389.36
  6. Step 6: Final answer
    x = 92,185.28

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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.