Home / 158,977.27-219,393.53-87,359.50

Finding the Fourth Proportional to 158,977.27, 219,393.53 and 87,359.50

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Solution

The fourth proportional to 158,977.27, 219,393.53 and 87,359.50 is: 120,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,977.27 : 219,393.53 = 87,359.50 : x
  2. Step 2: Convert to fraction form
    158,977.27/219,393.53 = 87,359.50/x
  3. Step 3: Cross multiply
    158,977.27x = 219,393.53 × 87,359.50
  4. Step 4: Simplify right side
    158,977.27x = 19,166,109,084.04
  5. Step 5: Solve for x
    x = 19,166,109,084.04/158,977.27
  6. Step 6: Final answer
    x = 120,558.80

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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.