Home / 154,944.17-213,813.98-86,954.80

Finding the Fourth Proportional to 154,944.17, 213,813.98 and 86,954.80

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Solution

The fourth proportional to 154,944.17, 213,813.98 and 86,954.80 is: 119,992.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,944.17 : 213,813.98 = 86,954.80 : x
  2. Step 2: Convert to fraction form
    154,944.17/213,813.98 = 86,954.80/x
  3. Step 3: Cross multiply
    154,944.17x = 213,813.98 × 86,954.80
  4. Step 4: Simplify right side
    154,944.17x = 18,592,151,329.10
  5. Step 5: Solve for x
    x = 18,592,151,329.10/154,944.17
  6. Step 6: Final answer
    x = 119,992.58

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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.