Home / 112,942.89-169,359.85-65,569.92

Finding the Fourth Proportional to 112,942.89, 169,359.85 and 65,569.92

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Solution

The fourth proportional to 112,942.89, 169,359.85 and 65,569.92 is: 98,323.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,942.89 : 169,359.85 = 65,569.92 : x
  2. Step 2: Convert to fraction form
    112,942.89/169,359.85 = 65,569.92/x
  3. Step 3: Cross multiply
    112,942.89x = 169,359.85 × 65,569.92
  4. Step 4: Simplify right side
    112,942.89x = 11,104,911,815.71
  5. Step 5: Solve for x
    x = 11,104,911,815.71/112,942.89
  6. Step 6: Final answer
    x = 98,323.25

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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.