Home / 132,784.90-183,230.04-78,335.92

Finding the Fourth Proportional to 132,784.90, 183,230.04 and 78,335.92

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Solution

The fourth proportional to 132,784.90, 183,230.04 and 78,335.92 is: 108,095.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,784.90 : 183,230.04 = 78,335.92 : x
  2. Step 2: Convert to fraction form
    132,784.90/183,230.04 = 78,335.92/x
  3. Step 3: Cross multiply
    132,784.90x = 183,230.04 × 78,335.92
  4. Step 4: Simplify right side
    132,784.90x = 14,353,493,755.04
  5. Step 5: Solve for x
    x = 14,353,493,755.04/132,784.90
  6. Step 6: Final answer
    x = 108,095.83

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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.