Home / 137,567.20-189,921.39-105,242.26

Finding the Fourth Proportional to 137,567.20, 189,921.39 and 105,242.26

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Solution

The fourth proportional to 137,567.20, 189,921.39 and 105,242.26 is: 145,294.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,567.20 : 189,921.39 = 105,242.26 : x
  2. Step 2: Convert to fraction form
    137,567.20/189,921.39 = 105,242.26/x
  3. Step 3: Cross multiply
    137,567.20x = 189,921.39 × 105,242.26
  4. Step 4: Simplify right side
    137,567.20x = 19,987,756,305.94
  5. Step 5: Solve for x
    x = 19,987,756,305.94/137,567.20
  6. Step 6: Final answer
    x = 145,294.49

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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.