Home / 109,342.72-163,910.40-53,873.92

Finding the Fourth Proportional to 109,342.72, 163,910.40 and 53,873.92

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Solution

The fourth proportional to 109,342.72, 163,910.40 and 53,873.92 is: 80,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,342.72 : 163,910.40 = 53,873.92 : x
  2. Step 2: Convert to fraction form
    109,342.72/163,910.40 = 53,873.92/x
  3. Step 3: Cross multiply
    109,342.72x = 163,910.40 × 53,873.92
  4. Step 4: Simplify right side
    109,342.72x = 8,830,495,776.77
  5. Step 5: Solve for x
    x = 8,830,495,776.77/109,342.72
  6. Step 6: Final answer
    x = 80,759.80

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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.