Home / 100,579.50-150,869.25-25,699.81

Finding the Fourth Proportional to 100,579.50, 150,869.25 and 25,699.81

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Solution

The fourth proportional to 100,579.50, 150,869.25 and 25,699.81 is: 38,549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,579.50 : 150,869.25 = 25,699.81 : x
  2. Step 2: Convert to fraction form
    100,579.50/150,869.25 = 25,699.81/x
  3. Step 3: Cross multiply
    100,579.50x = 150,869.25 × 25,699.81
  4. Step 4: Simplify right side
    100,579.50x = 3,877,311,059.84
  5. Step 5: Solve for x
    x = 3,877,311,059.84/100,579.50
  6. Step 6: Final answer
    x = 38,549.72

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1.5x scale

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.