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Finding the Fourth Proportional to 134,155.96, 185,052.88 and 79,671.12

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Solution

The fourth proportional to 134,155.96, 185,052.88 and 79,671.12 is: 109,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,155.96 : 185,052.88 = 79,671.12 : x
  2. Step 2: Convert to fraction form
    134,155.96/185,052.88 = 79,671.12/x
  3. Step 3: Cross multiply
    134,155.96x = 185,052.88 × 79,671.12
  4. Step 4: Simplify right side
    134,155.96x = 14,743,370,208.83
  5. Step 5: Solve for x
    x = 14,743,370,208.83/134,155.96
  6. Step 6: Final answer
    x = 109,897.24

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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.