Home / 137,021.63-205,407.89-52,728.04

Finding the Fourth Proportional to 137,021.63, 205,407.89 and 52,728.04

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Solution

The fourth proportional to 137,021.63, 205,407.89 and 52,728.04 is: 79,044.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,021.63 : 205,407.89 = 52,728.04 : x
  2. Step 2: Convert to fraction form
    137,021.63/205,407.89 = 52,728.04/x
  3. Step 3: Cross multiply
    137,021.63x = 205,407.89 × 52,728.04
  4. Step 4: Simplify right side
    137,021.63x = 10,830,754,149.56
  5. Step 5: Solve for x
    x = 10,830,754,149.56/137,021.63
  6. Step 6: Final answer
    x = 79,044.12

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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.