Home / 104,287.72-143,916.60-56,540.92

Finding the Fourth Proportional to 104,287.72, 143,916.60 and 56,540.92

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Solution

The fourth proportional to 104,287.72, 143,916.60 and 56,540.92 is: 78,026.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,287.72 : 143,916.60 = 56,540.92 : x
  2. Step 2: Convert to fraction form
    104,287.72/143,916.60 = 56,540.92/x
  3. Step 3: Cross multiply
    104,287.72x = 143,916.60 × 56,540.92
  4. Step 4: Simplify right side
    104,287.72x = 8,137,176,967.27
  5. Step 5: Solve for x
    x = 8,137,176,967.27/104,287.72
  6. Step 6: Final answer
    x = 78,026.22

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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.