Home / 158,529.42-218,770.83-86,912.46

Finding the Fourth Proportional to 158,529.42, 218,770.83 and 86,912.46

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Solution

The fourth proportional to 158,529.42, 218,770.83 and 86,912.46 is: 119,939.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,529.42 : 218,770.83 = 86,912.46 : x
  2. Step 2: Convert to fraction form
    158,529.42/218,770.83 = 86,912.46/x
  3. Step 3: Cross multiply
    158,529.42x = 218,770.83 × 86,912.46
  4. Step 4: Simplify right side
    158,529.42x = 19,013,911,011.54
  5. Step 5: Solve for x
    x = 19,013,911,011.54/158,529.42
  6. Step 6: Final answer
    x = 119,939.32

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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.