Home / 142,683.45-196,903.08-79,021.19

Finding the Fourth Proportional to 142,683.45, 196,903.08 and 79,021.19

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Solution

The fourth proportional to 142,683.45, 196,903.08 and 79,021.19 is: 109,049.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,683.45 : 196,903.08 = 79,021.19 : x
  2. Step 2: Convert to fraction form
    142,683.45/196,903.08 = 79,021.19/x
  3. Step 3: Cross multiply
    142,683.45x = 196,903.08 × 79,021.19
  4. Step 4: Simplify right side
    142,683.45x = 15,559,514,711.75
  5. Step 5: Solve for x
    x = 15,559,514,711.75/142,683.45
  6. Step 6: Final answer
    x = 109,049.19

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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.