Home / 144,921.15-217,381.73-139,672.35

Finding the Fourth Proportional to 144,921.15, 217,381.73 and 139,672.35

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Solution

The fourth proportional to 144,921.15, 217,381.73 and 139,672.35 is: 209,508.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,921.15 : 217,381.73 = 139,672.35 : x
  2. Step 2: Convert to fraction form
    144,921.15/217,381.73 = 139,672.35/x
  3. Step 3: Cross multiply
    144,921.15x = 217,381.73 × 139,672.35
  4. Step 4: Simplify right side
    144,921.15x = 30,362,216,377.80
  5. Step 5: Solve for x
    x = 30,362,216,377.80/144,921.15
  6. Step 6: Final answer
    x = 209,508.53

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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.