Home / 262,042.02-393,062.70-82,128.66

Finding the Fourth Proportional to 262,042.02, 393,062.70 and 82,128.66

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Solution

The fourth proportional to 262,042.02, 393,062.70 and 82,128.66 is: 123,192.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,042.02 : 393,062.70 = 82,128.66 : x
  2. Step 2: Convert to fraction form
    262,042.02/393,062.70 = 82,128.66/x
  3. Step 3: Cross multiply
    262,042.02x = 393,062.70 × 82,128.66
  4. Step 4: Simplify right side
    262,042.02x = 32,281,712,846.98
  5. Step 5: Solve for x
    x = 32,281,712,846.98/262,042.02
  6. Step 6: Final answer
    x = 123,192.89

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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.