Home / 123,811.54-170,864.07-69,366.07

Finding the Fourth Proportional to 123,811.54, 170,864.07 and 69,366.07

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Solution

The fourth proportional to 123,811.54, 170,864.07 and 69,366.07 is: 95,727.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,811.54 : 170,864.07 = 69,366.07 : x
  2. Step 2: Convert to fraction form
    123,811.54/170,864.07 = 69,366.07/x
  3. Step 3: Cross multiply
    123,811.54x = 170,864.07 × 69,366.07
  4. Step 4: Simplify right side
    123,811.54x = 11,852,169,040.10
  5. Step 5: Solve for x
    x = 11,852,169,040.10/123,811.54
  6. Step 6: Final answer
    x = 95,727.50

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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.