Home / 158,974.12-219,384.21-87,358.75

Finding the Fourth Proportional to 158,974.12, 219,384.21 and 87,358.75

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Solution

The fourth proportional to 158,974.12, 219,384.21 and 87,358.75 is: 120,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,974.12 : 219,384.21 = 87,358.75 : x
  2. Step 2: Convert to fraction form
    158,974.12/219,384.21 = 87,358.75/x
  3. Step 3: Cross multiply
    158,974.12x = 219,384.21 × 87,358.75
  4. Step 4: Simplify right side
    158,974.12x = 19,165,130,355.34
  5. Step 5: Solve for x
    x = 19,165,130,355.34/158,974.12
  6. Step 6: Final answer
    x = 120,555.03

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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.