Home / 158,712.26-219,022.79-87,096.78

Finding the Fourth Proportional to 158,712.26, 219,022.79 and 87,096.78

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Solution

The fourth proportional to 158,712.26, 219,022.79 and 87,096.78 is: 120,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,712.26 : 219,022.79 = 87,096.78 : x
  2. Step 2: Convert to fraction form
    158,712.26/219,022.79 = 87,096.78/x
  3. Step 3: Cross multiply
    158,712.26x = 219,022.79 × 87,096.78
  4. Step 4: Simplify right side
    158,712.26x = 19,076,179,320.13
  5. Step 5: Solve for x
    x = 19,076,179,320.13/158,712.26
  6. Step 6: Final answer
    x = 120,193.49

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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.