Home / 109,259.70-163,869.30-30,357.60

Finding the Fourth Proportional to 109,259.70, 163,869.30 and 30,357.60

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Solution

The fourth proportional to 109,259.70, 163,869.30 and 30,357.60 is: 45,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,259.70 : 163,869.30 = 30,357.60 : x
  2. Step 2: Convert to fraction form
    109,259.70/163,869.30 = 30,357.60/x
  3. Step 3: Cross multiply
    109,259.70x = 163,869.30 × 30,357.60
  4. Step 4: Simplify right side
    109,259.70x = 4,974,678,661.68
  5. Step 5: Solve for x
    x = 4,974,678,661.68/109,259.70
  6. Step 6: Final answer
    x = 45,530.77

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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.