Home / 123,576.89-170,541.80-69,864.17

Finding the Fourth Proportional to 123,576.89, 170,541.80 and 69,864.17

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Solution

The fourth proportional to 123,576.89, 170,541.80 and 69,864.17 is: 96,415.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,576.89 : 170,541.80 = 69,864.17 : x
  2. Step 2: Convert to fraction form
    123,576.89/170,541.80 = 69,864.17/x
  3. Step 3: Cross multiply
    123,576.89x = 170,541.80 × 69,864.17
  4. Step 4: Simplify right side
    123,576.89x = 11,914,761,307.31
  5. Step 5: Solve for x
    x = 11,914,761,307.31/123,576.89
  6. Step 6: Final answer
    x = 96,415.77

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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.