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Finding the Fourth Proportional to 123,807.54, 170,858.55 and 69,362.07

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Solution

The fourth proportional to 123,807.54, 170,858.55 and 69,362.07 is: 95,721.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,807.54 : 170,858.55 = 69,362.07 : x
  2. Step 2: Convert to fraction form
    123,807.54/170,858.55 = 69,362.07/x
  3. Step 3: Cross multiply
    123,807.54x = 170,858.55 × 69,362.07
  4. Step 4: Simplify right side
    123,807.54x = 11,851,102,324.59
  5. Step 5: Solve for x
    x = 11,851,102,324.59/123,807.54
  6. Step 6: Final answer
    x = 95,721.97

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1.5x scale

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.