Home / 120,134.24-165,795.48-69,830

Finding the Fourth Proportional to 120,134.24, 165,795.48 and 69,830

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Solution

The fourth proportional to 120,134.24, 165,795.48 and 69,830 is: 96,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,134.24 : 165,795.48 = 69,830 : x
  2. Step 2: Convert to fraction form
    120,134.24/165,795.48 = 69,830/x
  3. Step 3: Cross multiply
    120,134.24x = 165,795.48 × 69,830
  4. Step 4: Simplify right side
    120,134.24x = 11,577,498,368.40
  5. Step 5: Solve for x
    x = 11,577,498,368.40/120,134.24
  6. Step 6: Final answer
    x = 96,371.35

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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.