Home / 158,920.48-219,299.43-87,303.52

Finding the Fourth Proportional to 158,920.48, 219,299.43 and 87,303.52

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Solution

The fourth proportional to 158,920.48, 219,299.43 and 87,303.52 is: 120,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,920.48 : 219,299.43 = 87,303.52 : x
  2. Step 2: Convert to fraction form
    158,920.48/219,299.43 = 87,303.52/x
  3. Step 3: Cross multiply
    158,920.48x = 219,299.43 × 87,303.52
  4. Step 4: Simplify right side
    158,920.48x = 19,145,612,172.99
  5. Step 5: Solve for x
    x = 19,145,612,172.99/158,920.48
  6. Step 6: Final answer
    x = 120,472.91

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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.