Home / 103,096.60-142,341.54-79,180.36

Finding the Fourth Proportional to 103,096.60, 142,341.54 and 79,180.36

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Solution

The fourth proportional to 103,096.60, 142,341.54 and 79,180.36 is: 109,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,096.60 : 142,341.54 = 79,180.36 : x
  2. Step 2: Convert to fraction form
    103,096.60/142,341.54 = 79,180.36/x
  3. Step 3: Cross multiply
    103,096.60x = 142,341.54 × 79,180.36
  4. Step 4: Simplify right side
    103,096.60x = 11,270,654,380.15
  5. Step 5: Solve for x
    x = 11,270,654,380.15/103,096.60
  6. Step 6: Final answer
    x = 109,321.30

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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.