Home / 161,977.49-243,040.07-83,147.12

Finding the Fourth Proportional to 161,977.49, 243,040.07 and 83,147.12

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Solution

The fourth proportional to 161,977.49, 243,040.07 and 83,147.12 is: 124,758.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,977.49 : 243,040.07 = 83,147.12 : x
  2. Step 2: Convert to fraction form
    161,977.49/243,040.07 = 83,147.12/x
  3. Step 3: Cross multiply
    161,977.49x = 243,040.07 × 83,147.12
  4. Step 4: Simplify right side
    161,977.49x = 20,208,080,857.77
  5. Step 5: Solve for x
    x = 20,208,080,857.77/161,977.49
  6. Step 6: Final answer
    x = 124,758.58

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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.