Home / 209,855.84-289,685.04-124,956.50

Finding the Fourth Proportional to 209,855.84, 289,685.04 and 124,956.50

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Solution

The fourth proportional to 209,855.84, 289,685.04 and 124,956.50 is: 172,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,855.84 : 289,685.04 = 124,956.50 : x
  2. Step 2: Convert to fraction form
    209,855.84/289,685.04 = 124,956.50/x
  3. Step 3: Cross multiply
    209,855.84x = 289,685.04 × 124,956.50
  4. Step 4: Simplify right side
    209,855.84x = 36,198,028,700.76
  5. Step 5: Solve for x
    x = 36,198,028,700.76/209,855.84
  6. Step 6: Final answer
    x = 172,489.98

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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.