Home / 154,768.32-213,593.22-86,784.22

Finding the Fourth Proportional to 154,768.32, 213,593.22 and 86,784.22

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Solution

The fourth proportional to 154,768.32, 213,593.22 and 86,784.22 is: 119,769.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,768.32 : 213,593.22 = 86,784.22 : x
  2. Step 2: Convert to fraction form
    154,768.32/213,593.22 = 86,784.22/x
  3. Step 3: Cross multiply
    154,768.32x = 213,593.22 × 86,784.22
  4. Step 4: Simplify right side
    154,768.32x = 18,536,520,994.99
  5. Step 5: Solve for x
    x = 18,536,520,994.99/154,768.32
  6. Step 6: Final answer
    x = 119,769.48

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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.