Home / 136,525.05-188,401.35-79,174.62

Finding the Fourth Proportional to 136,525.05, 188,401.35 and 79,174.62

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Solution

The fourth proportional to 136,525.05, 188,401.35 and 79,174.62 is: 109,259.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,525.05 : 188,401.35 = 79,174.62 : x
  2. Step 2: Convert to fraction form
    136,525.05/188,401.35 = 79,174.62/x
  3. Step 3: Cross multiply
    136,525.05x = 188,401.35 × 79,174.62
  4. Step 4: Simplify right side
    136,525.05x = 14,916,605,293.74
  5. Step 5: Solve for x
    x = 14,916,605,293.74/136,525.05
  6. Step 6: Final answer
    x = 109,259.11

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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.