Home / 146,451.86-219,427.05-79,938.68

Finding the Fourth Proportional to 146,451.86, 219,427.05 and 79,938.68

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Solution

The fourth proportional to 146,451.86, 219,427.05 and 79,938.68 is: 119,771.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,451.86 : 219,427.05 = 79,938.68 : x
  2. Step 2: Convert to fraction form
    146,451.86/219,427.05 = 79,938.68/x
  3. Step 3: Cross multiply
    146,451.86x = 219,427.05 × 79,938.68
  4. Step 4: Simplify right side
    146,451.86x = 17,540,708,733.29
  5. Step 5: Solve for x
    x = 17,540,708,733.29/146,451.86
  6. Step 6: Final answer
    x = 119,771.16

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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.