Home / 99,152.14-148,782.78-42,992.68

Finding the Fourth Proportional to 99,152.14, 148,782.78 and 42,992.68

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Solution

The fourth proportional to 99,152.14, 148,782.78 and 42,992.68 is: 64,512.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,152.14 : 148,782.78 = 42,992.68 : x
  2. Step 2: Convert to fraction form
    99,152.14/148,782.78 = 42,992.68/x
  3. Step 3: Cross multiply
    99,152.14x = 148,782.78 × 42,992.68
  4. Step 4: Simplify right side
    99,152.14x = 6,396,570,450.05
  5. Step 5: Solve for x
    x = 6,396,570,450.05/99,152.14
  6. Step 6: Final answer
    x = 64,512.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.