Home / 100,858.02-151,310.72-56,515.38

Finding the Fourth Proportional to 100,858.02, 151,310.72 and 56,515.38

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Solution

The fourth proportional to 100,858.02, 151,310.72 and 56,515.38 is: 84,786.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,858.02 : 151,310.72 = 56,515.38 : x
  2. Step 2: Convert to fraction form
    100,858.02/151,310.72 = 56,515.38/x
  3. Step 3: Cross multiply
    100,858.02x = 151,310.72 × 56,515.38
  4. Step 4: Simplify right side
    100,858.02x = 8,551,382,094.85
  5. Step 5: Solve for x
    x = 8,551,382,094.85/100,858.02
  6. Step 6: Final answer
    x = 84,786.34

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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.