Home / 118,849.77-164,017.17-67,870.80

Finding the Fourth Proportional to 118,849.77, 164,017.17 and 67,870.80

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Solution

The fourth proportional to 118,849.77, 164,017.17 and 67,870.80 is: 93,664.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,849.77 : 164,017.17 = 67,870.80 : x
  2. Step 2: Convert to fraction form
    118,849.77/164,017.17 = 67,870.80/x
  3. Step 3: Cross multiply
    118,849.77x = 164,017.17 × 67,870.80
  4. Step 4: Simplify right side
    118,849.77x = 11,131,976,541.64
  5. Step 5: Solve for x
    x = 11,131,976,541.64/118,849.77
  6. Step 6: Final answer
    x = 93,664.27

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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.