Home / 129,051.19-193,567.21-54,168.31

Finding the Fourth Proportional to 129,051.19, 193,567.21 and 54,168.31

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Solution

The fourth proportional to 129,051.19, 193,567.21 and 54,168.31 is: 81,248.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,051.19 : 193,567.21 = 54,168.31 : x
  2. Step 2: Convert to fraction form
    129,051.19/193,567.21 = 54,168.31/x
  3. Step 3: Cross multiply
    129,051.19x = 193,567.21 × 54,168.31
  4. Step 4: Simplify right side
    129,051.19x = 10,485,208,366.27
  5. Step 5: Solve for x
    x = 10,485,208,366.27/129,051.19
  6. Step 6: Final answer
    x = 81,248.44

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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.