Home / 105,438.92-158,942.66-98,582.67

Finding the Fourth Proportional to 105,438.92, 158,942.66 and 98,582.67

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Solution

The fourth proportional to 105,438.92, 158,942.66 and 98,582.67 is: 148,607.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,438.92 : 158,942.66 = 98,582.67 : x
  2. Step 2: Convert to fraction form
    105,438.92/158,942.66 = 98,582.67/x
  3. Step 3: Cross multiply
    105,438.92x = 158,942.66 × 98,582.67
  4. Step 4: Simplify right side
    105,438.92x = 15,668,991,306.79
  5. Step 5: Solve for x
    x = 15,668,991,306.79/105,438.92
  6. Step 6: Final answer
    x = 148,607.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.