Home / 124,908.93-172,440.90-84,131.37

Finding the Fourth Proportional to 124,908.93, 172,440.90 and 84,131.37

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Solution

The fourth proportional to 124,908.93, 172,440.90 and 84,131.37 is: 116,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,908.93 : 172,440.90 = 84,131.37 : x
  2. Step 2: Convert to fraction form
    124,908.93/172,440.90 = 84,131.37/x
  3. Step 3: Cross multiply
    124,908.93x = 172,440.90 × 84,131.37
  4. Step 4: Simplify right side
    124,908.93x = 14,507,689,161.03
  5. Step 5: Solve for x
    x = 14,507,689,161.03/124,908.93
  6. Step 6: Final answer
    x = 116,146.13

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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.