Home / 99,455.57-149,193.78-57,383.16

Finding the Fourth Proportional to 99,455.57, 149,193.78 and 57,383.16

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Solution

The fourth proportional to 99,455.57, 149,193.78 and 57,383.16 is: 86,080.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,455.57 : 149,193.78 = 57,383.16 : x
  2. Step 2: Convert to fraction form
    99,455.57/149,193.78 = 57,383.16/x
  3. Step 3: Cross multiply
    99,455.57x = 149,193.78 × 57,383.16
  4. Step 4: Simplify right side
    99,455.57x = 8,561,210,548.74
  5. Step 5: Solve for x
    x = 8,561,210,548.74/99,455.57
  6. Step 6: Final answer
    x = 86,080.75

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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.