Home / 205,624.19-308,335.13-72,485.10

Finding the Fourth Proportional to 205,624.19, 308,335.13 and 72,485.10

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Solution

The fourth proportional to 205,624.19, 308,335.13 and 72,485.10 is: 108,691.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,624.19 : 308,335.13 = 72,485.10 : x
  2. Step 2: Convert to fraction form
    205,624.19/308,335.13 = 72,485.10/x
  3. Step 3: Cross multiply
    205,624.19x = 308,335.13 × 72,485.10
  4. Step 4: Simplify right side
    205,624.19x = 22,349,702,912.78
  5. Step 5: Solve for x
    x = 22,349,702,912.78/205,624.19
  6. Step 6: Final answer
    x = 108,691.99

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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.