Home / 123,953.44-171,008.40-76,191.52

Finding the Fourth Proportional to 123,953.44, 171,008.40 and 76,191.52

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Solution

The fourth proportional to 123,953.44, 171,008.40 and 76,191.52 is: 105,115.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,953.44 : 171,008.40 = 76,191.52 : x
  2. Step 2: Convert to fraction form
    123,953.44/171,008.40 = 76,191.52/x
  3. Step 3: Cross multiply
    123,953.44x = 171,008.40 × 76,191.52
  4. Step 4: Simplify right side
    123,953.44x = 13,029,389,928.77
  5. Step 5: Solve for x
    x = 13,029,389,928.77/123,953.44
  6. Step 6: Final answer
    x = 105,115.19

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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.