Home / 175,389.80-262,782.30-81,703.40

Finding the Fourth Proportional to 175,389.80, 262,782.30 and 81,703.40

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Solution

The fourth proportional to 175,389.80, 262,782.30 and 81,703.40 is: 122,414.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,389.80 : 262,782.30 = 81,703.40 : x
  2. Step 2: Convert to fraction form
    175,389.80/262,782.30 = 81,703.40/x
  3. Step 3: Cross multiply
    175,389.80x = 262,782.30 × 81,703.40
  4. Step 4: Simplify right side
    175,389.80x = 21,470,207,369.82
  5. Step 5: Solve for x
    x = 21,470,207,369.82/175,389.80
  6. Step 6: Final answer
    x = 122,414.23

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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.