Home / 106,520.20-147,002.64-61,212.84

Finding the Fourth Proportional to 106,520.20, 147,002.64 and 61,212.84

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Solution

The fourth proportional to 106,520.20, 147,002.64 and 61,212.84 is: 84,476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,520.20 : 147,002.64 = 61,212.84 : x
  2. Step 2: Convert to fraction form
    106,520.20/147,002.64 = 61,212.84/x
  3. Step 3: Cross multiply
    106,520.20x = 147,002.64 × 61,212.84
  4. Step 4: Simplify right side
    106,520.20x = 8,998,449,081.90
  5. Step 5: Solve for x
    x = 8,998,449,081.90/106,520.20
  6. Step 6: Final answer
    x = 84,476.46

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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.