Home / 207,904.53-286,981.98-123,021.39

Finding the Fourth Proportional to 207,904.53, 286,981.98 and 123,021.39

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Solution

The fourth proportional to 207,904.53, 286,981.98 and 123,021.39 is: 169,813.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,904.53 : 286,981.98 = 123,021.39 : x
  2. Step 2: Convert to fraction form
    207,904.53/286,981.98 = 123,021.39/x
  3. Step 3: Cross multiply
    207,904.53x = 286,981.98 × 123,021.39
  4. Step 4: Simplify right side
    207,904.53x = 35,304,922,084.55
  5. Step 5: Solve for x
    x = 35,304,922,084.55/207,904.53
  6. Step 6: Final answer
    x = 169,813.14

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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.