Home / 109,351.89-163,790.48-53,073.72

Finding the Fourth Proportional to 109,351.89, 163,790.48 and 53,073.72

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Solution

The fourth proportional to 109,351.89, 163,790.48 and 53,073.72 is: 79,495.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,351.89 : 163,790.48 = 53,073.72 : x
  2. Step 2: Convert to fraction form
    109,351.89/163,790.48 = 53,073.72/x
  3. Step 3: Cross multiply
    109,351.89x = 163,790.48 × 53,073.72
  4. Step 4: Simplify right side
    109,351.89x = 8,692,970,206.87
  5. Step 5: Solve for x
    x = 8,692,970,206.87/109,351.89
  6. Step 6: Final answer
    x = 79,495.38

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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.