Home / 122,576.02-169,042.56-79,510.66

Finding the Fourth Proportional to 122,576.02, 169,042.56 and 79,510.66

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Solution

The fourth proportional to 122,576.02, 169,042.56 and 79,510.66 is: 109,651.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,576.02 : 169,042.56 = 79,510.66 : x
  2. Step 2: Convert to fraction form
    122,576.02/169,042.56 = 79,510.66/x
  3. Step 3: Cross multiply
    122,576.02x = 169,042.56 × 79,510.66
  4. Step 4: Simplify right side
    122,576.02x = 13,440,685,513.69
  5. Step 5: Solve for x
    x = 13,440,685,513.69/122,576.02
  6. Step 6: Final answer
    x = 109,651.83

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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.