Home / 100,782.42-151,267.08-50,897.64

Finding the Fourth Proportional to 100,782.42, 151,267.08 and 50,897.64

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Solution

The fourth proportional to 100,782.42, 151,267.08 and 50,897.64 is: 76,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,782.42 : 151,267.08 = 50,897.64 : x
  2. Step 2: Convert to fraction form
    100,782.42/151,267.08 = 50,897.64/x
  3. Step 3: Cross multiply
    100,782.42x = 151,267.08 × 50,897.64
  4. Step 4: Simplify right side
    100,782.42x = 7,699,137,381.69
  5. Step 5: Solve for x
    x = 7,699,137,381.69/100,782.42
  6. Step 6: Final answer
    x = 76,393.65

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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.