Home / 158,902.35-219,286.83-86,306.67

Finding the Fourth Proportional to 158,902.35, 219,286.83 and 86,306.67

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Solution

The fourth proportional to 158,902.35, 219,286.83 and 86,306.67 is: 119,104.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,902.35 : 219,286.83 = 86,306.67 : x
  2. Step 2: Convert to fraction form
    158,902.35/219,286.83 = 86,306.67/x
  3. Step 3: Cross multiply
    158,902.35x = 219,286.83 × 86,306.67
  4. Step 4: Simplify right side
    158,902.35x = 18,925,916,072.16
  5. Step 5: Solve for x
    x = 18,925,916,072.16/158,902.35
  6. Step 6: Final answer
    x = 119,104.07

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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.