Home / 222,145.77-306,436.55-136,146.41

Finding the Fourth Proportional to 222,145.77, 306,436.55 and 136,146.41

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Solution

The fourth proportional to 222,145.77, 306,436.55 and 136,146.41 is: 187,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,145.77 : 306,436.55 = 136,146.41 : x
  2. Step 2: Convert to fraction form
    222,145.77/306,436.55 = 136,146.41/x
  3. Step 3: Cross multiply
    222,145.77x = 306,436.55 × 136,146.41
  4. Step 4: Simplify right side
    222,145.77x = 41,720,233,962.37
  5. Step 5: Solve for x
    x = 41,720,233,962.37/222,145.77
  6. Step 6: Final answer
    x = 187,805.66

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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.