Home / 154,944.96-213,815.05-86,955.58

Finding the Fourth Proportional to 154,944.96, 213,815.05 and 86,955.58

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Solution

The fourth proportional to 154,944.96, 213,815.05 and 86,955.58 is: 119,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,944.96 : 213,815.05 = 86,955.58 : x
  2. Step 2: Convert to fraction form
    154,944.96/213,815.05 = 86,955.58/x
  3. Step 3: Cross multiply
    154,944.96x = 213,815.05 × 86,955.58
  4. Step 4: Simplify right side
    154,944.96x = 18,592,411,685.48
  5. Step 5: Solve for x
    x = 18,592,411,685.48/154,944.96
  6. Step 6: Final answer
    x = 119,993.65

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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.