Home / 125,796.06-173,556.09-85,439.88

Finding the Fourth Proportional to 125,796.06, 173,556.09 and 85,439.88

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Solution

The fourth proportional to 125,796.06, 173,556.09 and 85,439.88 is: 117,878.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,796.06 : 173,556.09 = 85,439.88 : x
  2. Step 2: Convert to fraction form
    125,796.06/173,556.09 = 85,439.88/x
  3. Step 3: Cross multiply
    125,796.06x = 173,556.09 × 85,439.88
  4. Step 4: Simplify right side
    125,796.06x = 14,828,611,502.87
  5. Step 5: Solve for x
    x = 14,828,611,502.87/125,796.06
  6. Step 6: Final answer
    x = 117,878.19

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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.