Home / 147,815.98-203,986.25-84,153.78

Finding the Fourth Proportional to 147,815.98, 203,986.25 and 84,153.78

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Solution

The fourth proportional to 147,815.98, 203,986.25 and 84,153.78 is: 116,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,815.98 : 203,986.25 = 84,153.78 : x
  2. Step 2: Convert to fraction form
    147,815.98/203,986.25 = 84,153.78/x
  3. Step 3: Cross multiply
    147,815.98x = 203,986.25 × 84,153.78
  4. Step 4: Simplify right side
    147,815.98x = 17,166,212,819.81
  5. Step 5: Solve for x
    x = 17,166,212,819.81/147,815.98
  6. Step 6: Final answer
    x = 116,132.32

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1.5x scale

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.