Home / 158,204.50-218,322.56-86,589.13

Finding the Fourth Proportional to 158,204.50, 218,322.56 and 86,589.13

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Solution

The fourth proportional to 158,204.50, 218,322.56 and 86,589.13 is: 119,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,204.50 : 218,322.56 = 86,589.13 : x
  2. Step 2: Convert to fraction form
    158,204.50/218,322.56 = 86,589.13/x
  3. Step 3: Cross multiply
    158,204.50x = 218,322.56 × 86,589.13
  4. Step 4: Simplify right side
    158,204.50x = 18,904,360,529.77
  5. Step 5: Solve for x
    x = 18,904,360,529.77/158,204.50
  6. Step 6: Final answer
    x = 119,493.19

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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.