Home / 112,957.12-169,325.52-53,776.90

Finding the Fourth Proportional to 112,957.12, 169,325.52 and 53,776.90

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Solution

The fourth proportional to 112,957.12, 169,325.52 and 53,776.90 is: 80,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,957.12 : 169,325.52 = 53,776.90 : x
  2. Step 2: Convert to fraction form
    112,957.12/169,325.52 = 53,776.90/x
  3. Step 3: Cross multiply
    112,957.12x = 169,325.52 × 53,776.90
  4. Step 4: Simplify right side
    112,957.12x = 9,105,801,556.49
  5. Step 5: Solve for x
    x = 9,105,801,556.49/112,957.12
  6. Step 6: Final answer
    x = 80,612.90

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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.