Home / 129,111.08-178,123.37-95,199.84

Finding the Fourth Proportional to 129,111.08, 178,123.37 and 95,199.84

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Solution

The fourth proportional to 129,111.08, 178,123.37 and 95,199.84 is: 131,338.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,111.08 : 178,123.37 = 95,199.84 : x
  2. Step 2: Convert to fraction form
    129,111.08/178,123.37 = 95,199.84/x
  3. Step 3: Cross multiply
    129,111.08x = 178,123.37 × 95,199.84
  4. Step 4: Simplify right side
    129,111.08x = 16,957,315,848.26
  5. Step 5: Solve for x
    x = 16,957,315,848.26/129,111.08
  6. Step 6: Final answer
    x = 131,338.97

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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.