Home / 100,858.45-151,311.37-56,515.81

Finding the Fourth Proportional to 100,858.45, 151,311.37 and 56,515.81

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Solution

The fourth proportional to 100,858.45, 151,311.37 and 56,515.81 is: 84,786.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,858.45 : 151,311.37 = 56,515.81 : x
  2. Step 2: Convert to fraction form
    100,858.45/151,311.37 = 56,515.81/x
  3. Step 3: Cross multiply
    100,858.45x = 151,311.37 × 56,515.81
  4. Step 4: Simplify right side
    100,858.45x = 8,551,484,637.76
  5. Step 5: Solve for x
    x = 8,551,484,637.76/100,858.45
  6. Step 6: Final answer
    x = 84,786.99

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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.