Home / 123,681.13-170,633.39-72,696.08

Finding the Fourth Proportional to 123,681.13, 170,633.39 and 72,696.08

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Solution

The fourth proportional to 123,681.13, 170,633.39 and 72,696.08 is: 100,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,681.13 : 170,633.39 = 72,696.08 : x
  2. Step 2: Convert to fraction form
    123,681.13/170,633.39 = 72,696.08/x
  3. Step 3: Cross multiply
    123,681.13x = 170,633.39 × 72,696.08
  4. Step 4: Simplify right side
    123,681.13x = 12,404,378,633.21
  5. Step 5: Solve for x
    x = 12,404,378,633.21/123,681.13
  6. Step 6: Final answer
    x = 100,293.22

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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.