Home / 207,436.86-286,266.51-122,553.72

Finding the Fourth Proportional to 207,436.86, 286,266.51 and 122,553.72

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Solution

The fourth proportional to 207,436.86, 286,266.51 and 122,553.72 is: 169,126.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,436.86 : 286,266.51 = 122,553.72 : x
  2. Step 2: Convert to fraction form
    207,436.86/286,266.51 = 122,553.72/x
  3. Step 3: Cross multiply
    207,436.86x = 286,266.51 × 122,553.72
  4. Step 4: Simplify right side
    207,436.86x = 35,083,025,711.92
  5. Step 5: Solve for x
    x = 35,083,025,711.92/207,436.86
  6. Step 6: Final answer
    x = 169,126.29

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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.