Home / 209,679.47-289,385.00-124,796.53

Finding the Fourth Proportional to 209,679.47, 289,385.00 and 124,796.53

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Solution

The fourth proportional to 209,679.47, 289,385.00 and 124,796.53 is: 172,235.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,679.47 : 289,385.00 = 124,796.53 : x
  2. Step 2: Convert to fraction form
    209,679.47/289,385.00 = 124,796.53/x
  3. Step 3: Cross multiply
    209,679.47x = 289,385.00 × 124,796.53
  4. Step 4: Simplify right side
    209,679.47x = 36,114,244,741.77
  5. Step 5: Solve for x
    x = 36,114,244,741.77/209,679.47
  6. Step 6: Final answer
    x = 172,235.48

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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.