Home / 200,087.20-299,875.65-81,624.70

Finding the Fourth Proportional to 200,087.20, 299,875.65 and 81,624.70

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Solution

The fourth proportional to 200,087.20, 299,875.65 and 81,624.70 is: 122,332.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,087.20 : 299,875.65 = 81,624.70 : x
  2. Step 2: Convert to fraction form
    200,087.20/299,875.65 = 81,624.70/x
  3. Step 3: Cross multiply
    200,087.20x = 299,875.65 × 81,624.70
  4. Step 4: Simplify right side
    200,087.20x = 24,477,259,968.56
  5. Step 5: Solve for x
    x = 24,477,259,968.56/200,087.20
  6. Step 6: Final answer
    x = 122,332.96

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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.