Home / 136,388.40-188,165.06-136,178.14

Finding the Fourth Proportional to 136,388.40, 188,165.06 and 136,178.14

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Solution

The fourth proportional to 136,388.40, 188,165.06 and 136,178.14 is: 187,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,388.40 : 188,165.06 = 136,178.14 : x
  2. Step 2: Convert to fraction form
    136,388.40/188,165.06 = 136,178.14/x
  3. Step 3: Cross multiply
    136,388.40x = 188,165.06 × 136,178.14
  4. Step 4: Simplify right side
    136,388.40x = 25,623,967,883.79
  5. Step 5: Solve for x
    x = 25,623,967,883.79/136,388.40
  6. Step 6: Final answer
    x = 187,874.98

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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.