Home / 186,115.29-279,137.33-72,263.10

Finding the Fourth Proportional to 186,115.29, 279,137.33 and 72,263.10

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Solution

The fourth proportional to 186,115.29, 279,137.33 and 72,263.10 is: 108,380.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,115.29 : 279,137.33 = 72,263.10 : x
  2. Step 2: Convert to fraction form
    186,115.29/279,137.33 = 72,263.10/x
  3. Step 3: Cross multiply
    186,115.29x = 279,137.33 × 72,263.10
  4. Step 4: Simplify right side
    186,115.29x = 20,171,328,430.21
  5. Step 5: Solve for x
    x = 20,171,328,430.21/186,115.29
  6. Step 6: Final answer
    x = 108,380.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.