Home / 205,612.08-308,450.78-72,533.04

Finding the Fourth Proportional to 205,612.08, 308,450.78 and 72,533.04

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Solution

The fourth proportional to 205,612.08, 308,450.78 and 72,533.04 is: 108,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,612.08 : 308,450.78 = 72,533.04 : x
  2. Step 2: Convert to fraction form
    205,612.08/308,450.78 = 72,533.04/x
  3. Step 3: Cross multiply
    205,612.08x = 308,450.78 × 72,533.04
  4. Step 4: Simplify right side
    205,612.08x = 22,372,872,763.77
  5. Step 5: Solve for x
    x = 22,372,872,763.77/205,612.08
  6. Step 6: Final answer
    x = 108,811.08

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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.