Home / 123,301.68-170,156.64-66,713.04

Finding the Fourth Proportional to 123,301.68, 170,156.64 and 66,713.04

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Solution

The fourth proportional to 123,301.68, 170,156.64 and 66,713.04 is: 92,064.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,301.68 : 170,156.64 = 66,713.04 : x
  2. Step 2: Convert to fraction form
    123,301.68/170,156.64 = 66,713.04/x
  3. Step 3: Cross multiply
    123,301.68x = 170,156.64 × 66,713.04
  4. Step 4: Simplify right side
    123,301.68x = 11,351,666,730.59
  5. Step 5: Solve for x
    x = 11,351,666,730.59/123,301.68
  6. Step 6: Final answer
    x = 92,064.17

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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.