Home / 158,545.38-218,786.78-86,923.82

Finding the Fourth Proportional to 158,545.38, 218,786.78 and 86,923.82

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Solution

The fourth proportional to 158,545.38, 218,786.78 and 86,923.82 is: 119,951.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,545.38 : 218,786.78 = 86,923.82 : x
  2. Step 2: Convert to fraction form
    158,545.38/218,786.78 = 86,923.82/x
  3. Step 3: Cross multiply
    158,545.38x = 218,786.78 × 86,923.82
  4. Step 4: Simplify right side
    158,545.38x = 19,017,782,683.10
  5. Step 5: Solve for x
    x = 19,017,782,683.10/158,545.38
  6. Step 6: Final answer
    x = 119,951.67

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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.