Home / 104,422.65-156,369.02-87,511.20

Finding the Fourth Proportional to 104,422.65, 156,369.02 and 87,511.20

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Solution

The fourth proportional to 104,422.65, 156,369.02 and 87,511.20 is: 131,044.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,422.65 : 156,369.02 = 87,511.20 : x
  2. Step 2: Convert to fraction form
    104,422.65/156,369.02 = 87,511.20/x
  3. Step 3: Cross multiply
    104,422.65x = 156,369.02 × 87,511.20
  4. Step 4: Simplify right side
    104,422.65x = 13,684,040,583.02
  5. Step 5: Solve for x
    x = 13,684,040,583.02/104,422.65
  6. Step 6: Final answer
    x = 131,044.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.